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MHT CET Physics question

PhysicsLaws of MotionMHT CET

A body of mass 'm' is moving along a circle of radius 'r' with linear speed 'v'. Now, to change the linear speed to and to move it along the circle of radius '4r', required change in the centripetal force of the body is [MHT-CET 2020]

Answer: (A)

Solution

; new force , so the force decreases by

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Question ID VK-039570