Question

Two objects of masses 100g and 300g are moving with the velocity of 5m/s and 2m/s in opposite direction. Find the resultant momentum after collision.

Answer 1

Law of Conservation of momentum : P(initial) = P(final)

P = M × V

Pi of 1st object + Pi of 2nd object = Pf of 1st object + Pf of 2nd object

0.1 kg × 5m/s + 0.3kg ×2m/s = resultant momentum

0.5 + 0.6 = resultant momentum

Resultant momentum = 1.1 kgm/s

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