An object of mass 2 kg travelling in a straight line with a velocity of 10 ms–1 collides with and sticks to a stationary object of mass 6 kg. Then they both move off together in the same straight line. Calculate the total momentum just before the impact and just after the impact.
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Explanation:
total mass=(2+6)kg
=8kg
final velocity=10m/s
momentum=mv
=8×10
=80kgm/s^2
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