First slide

Second law

Question

A player caught a cricket ball of mass 150g moving at a rate of 20 m/s. If the catching process is completed in 0.1s, the average force of the blow exerted by the ball on the hand of the player is equal to :

Moderate

A

150N
B

3N
C

30N
D

300N

Solution

Force on the hand F = $\frac{150 \times 10^{- 3} \times 20 - 0}{0.1} N = 30 N$

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