Physics

Problem

A ball of mass

0.15 \text{ kg}

hits the wall with its initial speed of

12 \text{ ms}^{-1}

and bounces back without changing its initial speed. The force applied by the wall on the ball during the contact is

100 \text{ N}

. Calculate the time duration of the contact of ball with the wall. (a)

0.018 \text{ s}

(b)

0.036 \text{ s}

(c)

0.009 \text{ s}

(d)

0.072 \text{ s}