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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A non-zero external force acts on a system of particles. The velocity and acceleration of the centre of mass are found to be and at an instant . It is possible that

Answer: (B)

Solution

With a non-zero net external force, always. But (the instantaneous velocity) can be momentarily zero (e.g. a body just released

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Question ID VK-158601