Physics

Problem

A ball rolls off the top of a staircase with a horizontal velocity of

4.8\,\text{m/s}

. Each step is

0.2\,\text{m}

high and

0.2\,\text{m}

wide. Which step number will the ball hit first? If the coefficient of restitution

e = 0.8

and the surface is frictionless find the step number of second bounce. (Take

g = 10\,\text{m/s}^{2}