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When a ball of 0.5 kg mass moving with a...

When a ball of 0.5 kg mass moving with a speed of 20 `ms^(-1)` rebounds after striking normally a ferfectly elastic wall. Find the change in momentum.

Text Solution

Verified by Experts

Change in linear momentum = m(v-u)
`Delta=-mv-mv=-2mv`
`=2 xx 0.5 xx 20 =20 xx 1`
`= 20 kg ms^(-1)`
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