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A ball of mass 1 kg moving with a speed ...

A ball of mass 1 kg moving with a speed of `10 ms^(-1)` rebounds after a pefect elastic collision with the floor. Calculate the change in linear momentum of the ball.

Text Solution

Verified by Experts

Given `"mass = 1 kg, speed = 10 ms"^(-1)`
`therefore" Initial momentum"=m uxx10="10 kg ms"^(-1)`
`"Final momentum"=-m u=-10" kg ms"^(-1)`
`"Change in momentum"="final momentum"-"initial momentum"`
`=-m u-m u`
`"Change in momentum"=-"20 kg ms"^(-1)`
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