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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A shell of mass 10 kg is moving with a velocity of 10 ms⁻¹ when it blasts and forms two parts of mass 9 kg and 1 kg respectively. If the 1st mass (9 kg) is stationary after the blast, the velocity of the 2nd (1 kg) is

Answer: (C)

Solution

Total initial momentum = 10 × 10 = 100 kg·ms⁻¹. With the 9 kg piece stationary (zero

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Question ID VK-153282