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Question

A particle of mass m moving with a velocity (3^i+2^j)ms1 collides with a stationary body of mass M and finally moves with a velocity (2^i+^j)ms1. If Mm=113, then:

A
the impuse received by M is m(5^i+^j)
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B
The velocity of the M is 113(5^i+^j)
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C
The coefficient of restitutions 1117
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D
All of the above are correct
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Solution

The correct option is A the impuse received by M is m(5^i+^j)
Impulse = change in momentum
=m.ΔV=m[(3^i+2^j)(2^i+^j)]=m[5^i^j].

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