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

A cricket ball of mass 0.5 kg strikes a bat normally with a velocity of `"30 ms"^(-1)` and rebounds with a velocity of `"20 ms"^(-1)` in the opposite direction, calculate the impulse of the force exerted by the ball on the bat.

Text Solution

Verified by Experts

`"Impulse"="Change in momentum"`
`= m u-(-m v)`
`=m(u+v)=0.5(30+20)=25Ns`
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Knowledge Check

  • A cricket ball of mass 100 g moving with a velocity of 20 ms^(-1) is brought to rest by a player

    A
    `0.5 Ns `
    B
    `-2 Ns `
    C
    `-2.5Ns `
    D
    zero

  • What will be the wavelength of a ball of mass 0.1 kg moving with a velocity of 10 ms^(-1) ?

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    B
    `6.626 xx 10^(34) m`
    C
    `6.626 xx 10^(-32) m`
    D
    `6.626 xx 10^(34) m`

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