Question

A tennis ball dropped on a barizoontal smooth surface , it because back to its original postion after hiting the surface the force on the bell during the collision is propertional to the length of compression of the bell . Which one of the following skethes desches discribe the variation of its kinetic energy `K` with time `1` mass apporiandly ? The figure as only illistrative and not to the scale .
A.
B.
C.
D.

Answer 1

Correct Answer - B
`K=(1)/(2)mv^(2)=(1)/(2)mg^(2)t^(2)`