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Physics · LAWS OF MOTION
हिन्दीA cricket player catches a ball of mass \( 150 \text{ g} \) moving with a speed of \( 20 \text{ m s}^{-1} \). If he brings the ball to rest in \( 0.1 \text{ s} \), the average retarding force exerted on his hands is:
Correct answer · Option 4
\( 30 \text{ N} \)
Explanation
Force \( F = \frac{\Delta p}{\Delta t} = \frac{m(v - u)}{\Delta t} = \frac{0.15 \times (0 - 20)}{0.1} = -30 \text{ N} \). Magnitude of retarding force is \( 30 \text{ N} \).
