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A heavy car A of mass 2000 kg travelling at 10 m/s has a head-on collision with a sports car B of mass 500 kg. If both cars stop dead on colliding, what was the velocity of car B?

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A heavy car A of mass 2000 kg travelling at 10 m/s has a head-on collision with a sports car B of mass 500 kg. If both cars stop dead on colliding, what was the velocity of car B?

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Mass of car A, m1 = 2000 kg

Speed of car A, v1 = 10 m/s

Mass of car B, m2 = 500 kg

Speed of car B, v2

Acc. to law of conservation of momentum

m1v1 = m2v2

2000 x 10 = 500 x v2

v2 = \(\frac{2000 \times 10}{500}\) = 40 m/s

This post was modified 1 year ago by Mayank1444
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