Questions
A body of mass 2kg is moving with velocity 10 m/s towards east. Another body of same mass and same velocity moving towards north collides with former and coalesces and moves towards north-east. Its velocity is
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Correct option is D
Initial momentum = P→=mvi^+mvj^ |P→|=2mvFinal momentum = 2m×VBy the law of conservation of momentum 2m×V=2 mv⇒V=v2In the problem v=10m/s (given) ∴V=102=52 m/s
Similar Questions
Two bodies having same mass 40 kg are moving in opposite directions, one with a velocity of 10 m/s and the other with 7 m/s If they collide and move as one body, the velocity of the combination is (m/s)
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