Energy was required to deform the ball s shape during the collision with the floor.
A hard rubber ball is dropped from rest.
A rubber ball with a mass of 0 160 kg is dropped from rest.
When the balls are released the lighter ball with mass m is directly above the heavier ball with mass m.
So in this example the positive direction the away from the detector direction is downward.
A motion detector is mounted on the ceiling directly above the ball facing down.
What is the best way to explain the loss of kinetic energy of the ball during the collision.
A rubber ball is shot straight up from the ground with speed v0.
Thus when the balls collide the ball of mass m is moving.
A rubber ball is dropped from rest at a fixed height.
How high does the ball bounce.
Almost everybody at some point in their lives has bounced a rubber ball against the wall or floor and observed its motion.
A hard rubber ball is dropped from rest.
It bounces off a hard floor and rebounds upward but it only reaches 90 of its original fixed height.
A 100 g rubber ball is dropped from a height of 2 0 m onto a hard floor with the force exerted by the floor on the ball shown in the figure.
At what height above the ground do the balls collide.
Assume the heavier ball reaches the floor first and bounces elastically.
It falls to the floor and bounces back up to almost its initial height.
On the way down v1y v0y 2g y v1y 2 9 8 2 0 6 26 ms 1 ball moving down 22.
Simultaneously a second rubber ball at height h directly above the first ball is dropped from rest.
From what height was the ball dropped if the magnitude of the ball s momentum is 0 760 kg.
Normally we don t think about the physics of bouncing balls too much as it s fairly obvious what is happening the ball basically rebounds off a surface at a speed proportional to how fast it is thrown.
Explain the answer.
What is the best way to explain the loss of kinetic energy of the ball during the collision.
It bounces off a hard floor and rebounds upward but it only reaches 90 of its original fixed height.
