Question

A truck of mass 500kg moving at 4m/s collides with another truck of mass 1500kg moving in the same direction at 2m/s . what is their common velocity just after the collision if the move off together ?

Answer 1

Answer:

By conservation of momentum,

mv = m1v1+m2v2

2000×v = 500×4 + 1500×2

2000v = 2000+3000

2000v = 5000

v = 5/2 = 2.5 m/s^2

so, after collosion their common velocity will be 2.5 m/s^2.

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