1.

A cricket ball of mass 250g collides with a bat with velocity `10m//s` and returns with the same velocity within `0.01` second. The force acted on bat isA. 25 NB. 50 NC. 250 ND. 500 N

Answer» Correct Answer - D
`Deltap=2mv`
`=2xx025xx10`
`=5kgm//s`
`F=(Deltap)/(Deltat)=(5)/(0.01)=500N`


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