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MHT CET Physics question

PhysicsSystems of Particles and Rotational MotionMHT CET

A mass M moving with velocity 'v' along x axis collides and sticks to another mass 2M which is moving along Y-axis with velocity 3v. After collision, the velocity of the combination is [MHT-CET 2020]

Answer: (D)

Solution

Momentum is conserved: , so ; (a) has

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Question ID VK-062432