A rubber ball and a clay ball, each with the same mass, are thrown at a wall with equal speeds. The rubber ball bounces off the wall, while the clay ball sticks to it. Which ball exerts a larger impulse on the wall? a) The clay ball exerts a larger impulse because it sticks. b) The rubber ball exerts a larger impulse because it bounces.
Full Answer
Would a rubber ball exert more impulse than clay?
I think that the rubber ball would exert more of an impulse because it's dt would be larger. Since it has to hit the ball and bounce of it, as opposed to the clay, which hits the wall and stops.
Why does the iron ball exert a greater impulse on the wall?
The iron ball exerts a greater impulse on the wall because iron is tougher than rubber. D. The rubber ball exerts a greater impulse on the wall because it bounces back with a higher speed than the iron ball. I think the answer is B because Impulse equals Force times Time, with Force equaling Mass times Acceleration.
Why does the ball hit the wall but not the clay?
Since it has to hit the ball and bounce of it, as opposed to the clay, which hits the wall and stops. Thoughts? Impulse is either F*Δt or m*Δv. The first expression is difficult to use because you don't actually know the force and duration of the collisions with the wall.
What is the impulse of a golf club?
However, since the club has more mass than the ball, it's speed will not change drastically resulting in moving approximately 13 meters per second. The impulse, therefore, is equal to the change in momentum.
Which ball has greater impulse?
a) The clay ball exerts a larger impulse because it sticks.
Which ball has a larger impulse during the collision?
p=mv and both malls have the same mass throughout and the same initial velocity, so the ball with the greater final velocity exerts the greater impulse.
Which experiences the greater impulse from the ground the golf ball the bean bag both the same not enough information?
A golf ball and an equal-mass bean bag are dropped from the same height and hit the ground. The bean bag stays on the ground while the golf ball rebounds. Which experiences the greater impulse from the ground? The golf ball.
What causes greater impulse?
As mentioned above, if cars rebound upon collision, the momentum change will be larger and so will the impulse. A greater impulse will typically be associated with a bigger force.
Does more mass mean more impulse?
These concepts are merely an outgrowth of Newton's second law as discussed in an earlier unit. Newton's second law (Fnet = m • a) stated that the acceleration of an object is directly proportional to the net force acting upon the object and inversely proportional to the mass of the object.
Does impulse increase with mass?
If you increase either mass or velocity, the momentum of the object increases proportionally. If you double the mass or velocity you double the momentum.
Which has a greater change in momentum a rubber ball bouncing off the floor or a bean bag landing on the floor why?
Both objects reach the same speed at the floor. However, while the beanbag comes to rest on the floor, the ball bounces back up with nearly the same speed as it hit. Thus, the change in momentum for the ball is greater, because of the rebound.
Who exerts the greater force on a baseball when thrown by the pitcher and caught by the catcher?
The catcherThe catcher exerts the larger force on the ball because the time interval over which the force is exerted is smaller. ANSWER: a. The pitcher and the catcher exert the same amount of impulse on the ball, but the two impulses are in opposite directions.
Which has the greater change in momentum a 50 gram clay ball?
Which has the greater change in momentum, a 50 gram clay ball that strikes a wall at 1 m/s and sticks or a 50 gram superball that strikes a wall at 1 m/s and bounces away from the wall at 8.0 m/s? Explain? The ball that bounces has a GREATER change in momentum being that the numerical value is larger.
Why does impulse equal change in momentum?
From the equation, we see that the impulse equals the average net external force multiplied by the time this force acts. It is equal to the change in momentum. The effect of a force on an object depends on how long it acts, as well as the strength of the force.
What happens to the momentum when objects have the same velocity but different mass?
Momentum is a conserved quantity; the momentum of an object is never changed. The momentum of an object varies directly with the speed of the object. Two objects of different mass are moving at the same speed; the more massive object will have the greatest momentum.
Will two objects with the same mass always have the same momentum?
Two objects with the same mass will always have the same momentum.
Why does a golf ball react with a golf club?
A reaction between a golf ball and golf club proves this to be true because they apply same amount of force back onto each other, but in the opposite direction. For example, the golf ball applies same momentum back on the club, but travels in the same direction as the club due to the smaller mass. For example, if the club applies a force ...
What happens when a golf club hits a golf ball?
During the impact between a golf club and a golf ball, the force of the golf club affects the ball. This collision causes the ball to travel into the air. In a collision, the amount of time the golf ball is in contact with the club and/or the amount of force applied will cause the object to speed up or slow down. Newton's Third Law:
What is the third law of golf?
Newton's third law states that every action has a equal and opposite reaction.
What is the difference between a rubber ball and a clay ball?
A rubber ball and a clay ball, each with the same mass, are thrown at a wall with equal speeds. The rubber ball bounces off the wall, while the clay ball sticks to it. Which ball exerts a larger impulse on the wall?
What is the collision between a ball and a racquet?
A collision between a ball and a racquet is an example in physics where relatively simple “before” and after” states (e.g.,how fast the ball is going) are separated by an enormously complicated event (e.g.,the collision). 9.1 Impulse-momentum theorem Is there a way to understand how the before and after states are related to each other without having to worry about the messy details of the collision? You bet there is!
What is the clicker question 9.3?
Clicker question 9.3 In three separate interactions, object A exerts a time-dependent force over a relatively short time on object B, as represented in the F(t) vs. tgraphs below. event 1 event 2 event 3
What is the impulse momentum theorem?
Impulse momentum theorem is just a restatement of Newton’s 2ndLaw. We use the I-M theorem when we don’t care about the forces, accelerations, etc.,and need only a final velocity or momentum. If we need an acceleration or a force, then we must use Newton’s 2nd
How much force does a tennis racquet have?
Thus, the racquet must exert an impulse of 7.06 Ns. If the duration of the collision is 0.002 s, the average force is 7.06/0.002 = 3540 N ~ 800 lbs!
Which is the most accurate method to evaluate velocity?
the impulse approximation. The impulse approximation is the most accurate when used to evaluate velocities immediatelybefore and after collision. Then use kinematics/dynamics for the rest of the problem.
Who was the hardest hitter in tennis?
Among the hardest hitters in tennis was “Big Bill” Tilden who, in 1931, was recorded hitting the ball at 232 kph! (73 ms-1) Assuming your racquet survives the impact, what impulse does your racquet have to provide to return Bill’s volley with 2/3 of the speed intact? (The mass of a standard tennis ball is 58 g.)
Which has more momentum, a rolling bowling ball or ping pong ball, going the same speed?
Which has more momentum, a rolling bowling ball or ping-pong ball, going the same speed? (Answer: Bowling ball, because it has more mass.)
How to explain a ping pong ball to a class?
Although they are about the same size, the golf ball is heavier. Explain that if you threw each ball the same speed, the golf ball would have greater momentum. This becomes painfully obvious with an example. Ask the students if they have ever played "dodge ball" or a similar game. Ask the students if they would rather play with the ping-pong ball or the golf ball. As students groan at the thought of getting hit with a golf ball, explain that the reason it would hurt more is because it would have substantially more momentum than a ping-pong ball. In this case, more momentum is due to the greater mass (weight) of the golf ball, and the momentum of the golf ball would translate into a big bruise on your leg!
How does momentum relate to collisions?
The amount of momentum an object has depends both on its mass and how fast it is going. For example, a heavier object going the same speed as a lighter object would have greater momentum. Sometimes, when objects collide into each other, momentum can be transferred from one object to another. There are two types of collisions that relate to momentum: elastic and inelastic. In a closed system, which means that there are no external forces acting on the objects that collide, both types of collisions follow the Law of Conservation of Momentum, which states "the total amount of momentum before a collision is equal to the total amount of momentum after a collision."
How to calculate momentum?
After this lesson, students should be able to: 1 Calculate the momentum of a moving object. 2 Recognize that momentum is proportional to mass and velocity. 3 Explain that in a closed system, momentum is conserved in both elastic and inelastic collisions. 4 Describe how collisions and momentum play an important role in the design of safe automobiles.
Why do engineers consider momentum when designing vehicles?
In a head-on collision, the front end of a car is designed to crumple, making the collision inelastic. It takes energy to crumple the front of the car and this is what absorbs some of the impact.
Why do engineers use crumple zones?
A crumple zone is designed into motor vehicles to absorb the main impact of the energy being transferred during a crash, so the people inside don't get hurt.
How high does a ping pong ball bounce?
Drop them both and watch as the ping-pong ball bounces as high as 10 feet. For a conservation of momentum demonstration, a ping-pong ball is held on top of a golf ball and they are dropped together.
Which balloon has the greatest impulse?
Balloon B has the greatest impulse. Impulse is equal to momentum change. If balloon B has the greatest momentum change, then it must also have the greatest impulse.
Which case is the impulse greatest?
The impulse is greatest in case B. Impulse equals momentum change and the momentum change is greatest in case B (as stated above) Observe that each of the collisions above involve the rebound of a ball off a wall. Observe that the greater the rebound effect, the greater the acceleration, momentum change, and impulse.
What is it called when an object has the same momentum and kinetic energy?
Collisions in which objects rebound with the same speed (and thus, the same momentum and kinetic energy) as they had prior to the collision are known as elastic collisions . In general, elastic collisions are characterized by a large velocity change, a large momentum change, a large impulse, and a large force.
How does a force change momentum?
A force acting for a given amount of time will change an object's momentum. Put another way, an unbalanced force always accelerates an object - either speeding it up or slowing it down. If the force acts opposite the object's motion, it slows the object down. If a force acts in the same direction as the object's motion, then the force speeds the object up. Either way, a force will change the velocity of an object. And if the velocity of the object is changed, then the momentum of the object is changed.
What happens when an object collides with a defensive back?
In a collision, objects experience an impulse ; the impulse causes and is equal to the change in momentum. Consider a football halfback running down the football field and encountering a collision with a defensive back. The collision would change the halfback's speed and thus his momentum.
What happens to the velocity of an object as the force acts on it?
As the force acts upon the object for a given amount of time, the object's velocity is changed; and hence, the object's momentum is changed. The concepts in the above paragraph should not seem like abstract information to you. You have observed this a number of times if you have watched the sport of football.
How does a collision happen?
The result of the force acting for the given amount of time is that the object's mass either speeds up or slows down (or changes direction). The impulse experienced by the object equals the change in momentum of the object. In equation form, F • t = m • Δ v.
What happens to the force of an impulse when it is longer?
the longer the impact time of an impulse, the smaller the force can be for the same momentum change, and hence the smaller the deformation of the object on which the force acts. On this basis, explain the value of air bags, which are intended to inflate during an automobile collision and reduce the possibility of fracture or death.
What is the momentum of the ball and earth system?
b) The momentum of the ball and earth system is conserved at all times and is equal to zero.
How is a superball dropped?
A superball is dropped from a height, h, onto a hard steel plate (fixed to the Earth), from which it rebounds at very nearly its original speed.
How do air bags affect impact time?
the air bags present in an automobile increase the impact time, from the instant when the car crashes to when the passengers body collides with the cars interior. This in turn reduces the force experienced by the passenger during impact, thereby ensuring that a fracture or death can be eliminated
What happens when you release an inflated balloon?
When you release an inflated but untied balloon at rest, the gas inside the balloon (at high pressure)
When there is rebound there is greater impulse?
collide and rebound b/c when there is rebound there is greater impulse; since impulse is force times time , if we assume the times are similar , a greater impulse would result in a greater force
Which has more momentum, a heavier or a heavier object?
Momentum is directly proportional to mass. More the mass, more the momentum.Thus, a heavy object has more momentum than a lighter object.
When two balls of the same diameter are made of materials of different density and mass, the ball with the greater mass density?
When two balls of the same diameter are made of materials of different density and mass, the ball with the greater mass-density will travel farther if projected with the same amount of force , or at the same initial speed.
Why do balls travel faster with high mass density?
Initial Force and Motion. Due to the different effects of external forces, balls with high mass-density would travel farther and faster than those with low mass-density if you could launch both with an infinite amount of force.
Why does a shot travel farther than a softball?
In other words, the shot will travel farther than the softball, because its mass makes it less vulnerable to air friction and gravity. Advertisement.
What is mass density?
For rigid bodies in motion, the principles of the physics field called "dynamic" apply. Among the factors that help to determine how a rigid body moves, its mass per unit length , or mass-density, plays a vital role both on the ground and in the air. ...
How does the law of inertia work?
Objects on the Ground. While the law of inertia works in a similar fashion on both the air and the ground, the forces that help to determine how a ball rolls differ slightly between the two. On level ground, gravity and air friction do not factor significantly into how an object rolls. In place of the forces of gravity and air friction, ...
Is a heavy metal shot stronger than a softball?
Although both are approximately equal in diameter, you'll find the mass of the heavy metal shot much higher than that of the softball. As such, shot putting requires a greater amount of strength, or initial force, than throwing a softball. Due to the shot's high mass-density, however, forces such as air friction and the downward pull ...
Does a bowling ball have more mass density than a basketball?
You can see similar effects on the ground. While it would require a greater amount of force to roll both at the same initial speed, a bowling ball's higher mass-density would give it greater rotational momentum than a rolled basketball.