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JEE Main Physics question

PhysicsLaws of MotionJEE Main

The kinetic energy k of a particle moving along a circle of radius R depends upon the distance s as k = as². The force acting on the particle is

Answer: (B)

Solution

K = ½mv² = as² ⟹ mv² = 2as². Tangential force = 2as (from Q209's method). Centripetal

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Question ID VK-153797