A cricket ball of mass 0.5 kg strikes a ...

A cricket ball of mass 0.5 kg strikes a circket bat normally with a velocity of `20" m s"^(-1)` and rebounds with a velocity of `10" m s"^(-1)`. The impulse of the force exerted by the ball on the bat is

15 N s

25 N s

30 N s

10 N s

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