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A ball of mass 1 kg drops vertically on ...

A ball of mass `1 kg` drops vertically on to the floor wit a speed of `25 m//s`. It rebounds with an initial velocity of `10 m//s`. What impulse acts on the ball during contact ?

A

`35 kg m//s` downwards

B

`35 kg m//s` upwards

C

`30 kg m//s` downwards

D

`30kg m//s` upwards

Text Solution

Verified by Experts

The correct Answer is:
B

Impulse
`= P_(f) - P_(1) = 1 xx 10 - 1 xx (-25) = 35 kg m//s uarr`
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ALLEN -CENTRE OF MASS-EXERCISE-I
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  17. A body of mass 2 kg is projected upward from the surface of the ground...

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