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If a cricketer catches a ball of mass 150 gm moving with a velocity of 20 m/s, then he experiences a force of (Time taken to complete the catch is 0.1 sec.)

1. 300 N
2. 30 N
3. 3 N
4. 0.3 N

Correct answer: 30 N

Solution

The force experienced can be calculated using the impulse-momentum theorem: F = Δp/Δt. Here, Δp = mΔv = (0.15 kg)(20 m/s - 0 m/s) = 3 kg·m/s, and Δt = 0.1 s. Thus, F = 3/0.1 = 30 N.

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