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A ball moving with a momentum of 5kg ms^...

A ball moving with a momentum of `5kg ms^(-1)` strikes against a wall at an angle of `45^(@)` and is reflected at the same angle calculate the change in momentum

A

`7.07`

B

`14.14`

C

`8.00`

D

`7.5`

Text Solution

Verified by Experts

`Delta p = 2mv cos theta = 2 p cos theta = 2xx5xx(1)/(sqrt(2))=7.07`
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