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JEE Main Physics question

PhysicsLaws of MotionJEE Main

The kinetic energy of a particle moving along a circle of radius depends on the distance covered as . The force acting on the particle is

Answer: (A)

Solution

K = \tfrac12 mv^2 = as^2 \Rightarrow mv^2 = 2as^2. Tangential force . Centripetal (radial) force $ =

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Question ID VK-157713