Question

Consider a rubber ball freely falling from a height ` h = 4.9 m` onto a horizontally elastic plate. Assume that the duration of collision is negligible and the collisions with the plate is totally elastic .
Then the velocity as a function of time and the height as a function of time will be :
A.
B.
C.
D.

Answer 1

Correct Answer - C
First velocity is negetive and increasing. At the time of collision it becomes `+ve` from `-ve` again and again hence graph `C`