Q.

A batsman hits back a ball of mass 0.15 kg straight in the direction of the bowler without changing its initial speed of 10 ms-1. If the ball moves linearly, then the impulse imparted on it (in Ns) is 

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a

1.5

b

3.0

c

2.0

d

1.9

answer is A.

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Detailed Solution

Impluse =Change in momentum =2mu=2×0.15×10=3.0Ns

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A batsman hits back a ball of mass 0.15 kg straight in the direction of the bowler without changing its initial speed of 10 ms-1. If the ball moves linearly, then the impulse imparted on it (in Ns) is