Golf club: third class lever where the top hand is the axis, the bottom hand is the force, and the bottom of the club is the resistance Swinging door: second class where the hinges are the axis, the resistance is the door, and the handle is the force Shovel: third class, see golf club
Full Answer
What kind of lever is a swinging door?
class 2 leverDoor hinge is a class 2 lever where the force (pushing the door) is applied away from the fulcrum (hinge). Load (door itself) is between fulcrum and force.
What class of lever is a golf club?
Class 3 lever: This is where the fulcrum is at one end of the lever, the load is at the other end, and the effort is in between. These levers involve using a large effort to move a small load a long distance. An example is a person playing golf (see Diagram 6).
What lever Class is a broom?
third class leversWith third class levers the effort is between the load and the fulcrum, for example in barbecue tongs. Other examples of third class levers are a broom, a fishing rod and a woomera.
Is a broom a class 1 lever?
Advantage of Third Class Levers Q: A broom is a third-class lever when it is used to sweep a floor (see the Figure below), so the output end of the lever moves faster than the input end.
How is a broom a lever?
In a broom stick, the handle of the broom at the top is the fulcrum, we push the handle from somewhere in the middle, that is the input effort and the bristles at the end of the broomstick sweep dust from the floor, that is the output load. Therefore, a broomstick is a lever of class 3.
What are the levers in the golf swing?
Your levers are the length of your left arm and golf club. If you swing the club back without cocking your wrists you are using one lever (left arm). Adding the second lever (club) by cocking your wrists substantially increases swing arc length and clubhead speed.
Is a swing a lever?
If the fulcrum is closer to the load, then less effort is needed to move the load. If the fulcrum is closer to the effort, then the load will move a greater distance. A pair of tweezers, swinging a baseball bat or using your arm to lift something are examples of third class levers.
What is a class 3 lever examples?
In a Class Three Lever, the Force is between the Load and the Fulcrum. If the Force is closer to the Load, it would be easier to lift and a mechanical advantage. Examples are shovels, fishing rods, human arms and legs, tweezers, and ice tongs. A fishing rod is an example of a Class Three Lever.
What is a class 1 lever examples?
Examples include see-saws, crow bars, hammer claws, scissors, pliers, and boat oars. The claw end of a hammer, along with the handle, is a Class 1 Lever. When pulling a nail, the nail is the Load, the Fulcrum is the head of the hammer, and the Force or effort is at the other end of the handle, which is the Beam.
What is a 3rd class lever?
The third-class lever differs from the second-class lever in that the distribution of forces is changed in relation to the fulcrum. In third-class levers, the fulcrum remains at one end of the beam—however, the force of the effort is now located between the fulcrum and the force of the load.
What is a Class 1 2 3 lever?
There are three classes levers, according to the position of the fulcrum. Class 1 has the fulcrum placed between the effort and load. Class 2 has the load between the effort and the fulcrum. Class 3 has the effort between the load and the fulcrum.
What is the fulcrum of broom?
A broom's fulcrum is the hand that holds the top of the broomstick when you sweep. The broom is a lever and the hand in the top is the stationary point upon which the broom pivots. inclined plane on a fan.
What is the end position of a swimmer?
End position: both centres lie on one vertical line. The same swimmer takes up an identical position at the surface of the water, except that this time she flexes her knees so that both lower legs hang vertically downward. In this position, she is able to remain floating at the surface of the water.
How does an over arm ball work?
When a ball is thrown with an over arm action, the thrower's hand passes downward and forward beneath the ball during the release. This action of the hand relative to the ball serves to impart a backspin to the ball.
How does a swimmer float?
likely the body will float. A swimmer lies on her back in a fully extended position (arms straight and stretched overhead, legs straight and together) on the surface of the water. Moment after taking up this position, her feet begin to sink and they keep sin king until her body has rotated in a vertical position.
How far is the CG of the forearm and hand from the joint center?
A 35 N hand and forearm are held at a 45 degrees angle to the vertically oriented humerus. The CG of the forearm and hand is located at a distance of 15 cm from the joint center at the elbow, and the elbow flexor muscles attach at an average distance of 3 cm from the joint center.