InterviewSolution
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InterviewSolution
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&: i Define law consemom entum 02 |
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Answer» Momentum = mass * velocity. Total momentum of a system is always conserved. During a collision, momentum lost by one body is gained by another body. During a collision , assume F1 and F 2 be the forces acting on the two bodies. Assuming that only one collision takes place and assuming it to be an isolated system , F1= -F2 (Newtons 3rd law). But the collision time is the same for both the bodies, t1 = t2. Momentum of body 1 = F1*t1 and body 2 = F2*t2 F1*t1 = F1*t2 = -F2*t2 , Impulse = F * t , thus Impulse 1 = - Impulse 2 Impulse = change in momentum (by second law of Newton) , thus , m1 * v1 = - m2 * v2 , thus this implies momentum gained by one body = momentum lost by another body. |
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