Question

A 0.5 kg ball is thrown horizontally from point A with velocity $V_A=2m/s$. It strikes the smooth inclined plane and bounces. Take coefficient of restitution e =0.6 and $g=10m/s^2$

The ball strikes the smooth inclined plane at horizontal distance R. The approximate value of R is

• A. 4 m
• B. 2m
• C. 0.5m
• D. 5m

Answer 1

The correct option is B 2m


$t=\sqrt{\frac{2h}{g}}h=4+\frac{R}{\sqrt{3}}R=V_{A}tR=2.0m$