Question

A cricket ball of mass $100g$ moving at a speed of $30m{s}^{-1}$ is brought to rest by a player in $0.03s$. Find the average force applied by the player.

• A. $100$ $N$
• B. $80$ $N$
• C. $60$ $N$
• D. $10$ $N$

Answer 1

The correct option is A $100$ $N$

$F=Ma$, we know
Here, retardation: $a=\frac{v-u}{t}$ $=\frac{30}{0.03}=1000m/s^2$
So, $F=0.1\times 1000N=100N$