4 marksChallenge
Two bodies A and B collide directly. Body A has mass 3 kg and initial velocity u m/s (unknown). Body B has mass 2 kg and initial velocity 2 m/s. After the collision, A moves with velocity 2 m/s and B moves with velocity 5 m/s, both in the same direction as before the collision. Find the initial velocity u of body A.
- (a)[4]
Find u.
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