consider the acceleration velocity and displacement of a tennis ball as it falls to the ground and bouces back. Derections of which of these changes in the process

When a ball hits a wall with a velocity of 50m/s and bounces back with the same speed, what is the change in velocity of the ball?

A tennis ball with (small) mass m_(2) rests on the top of a basketball of mass m_(1) which is at a height h above the ground, and the bottom of the tennis ball is at height h+ d above the ground. The balls are dropped. To what height does the tennis ball bounce with respect to ground? (Assume all collisions to be elastic and m_(1)gt gt m_(2))

A tennis ball with (small) mass m_(2) rests on the top of a basketball of mass m_(1) which is at a height h above the ground, and the bottom of the tennis ball is at height h+ d above the ground. The balls are dropped. To what height does the tennis ball bounce with respect to ground? (Assume all collisions to be elastic and m_(1)gt gt m_(2))

A ball is projected with initial velocity u at an angle theta to the horizontal. Then horizontal displacement covered by ball as it collides third time to the ground would be, if coefficient of restitution is e :

A ball is thrown vertically upward from the ground with an initial velocity of 39.2 m/sec. If the only force considered is that attributed to the accleration due to gravity , find (i) how long will it take for the ball to strike the ground ? (ii) the speed with which will it strike the ground ? and (iii) how high the ball will rise ?

A metalic ball strikes a wall and drops dead whereas tennis ball having the same mass and velocity bounces back. Which of the following is correct ?

A tennis ball has a velocity of 12 m/s downward just before it strikes the ground and bounces up with a velocity of 12 m/s upward. Which statement is true concerning this situation?