A heavy ring fo mass m is clamped on the periphery of a light circular disc.A small particle having equal mass is clamped at the centre of the disc. The system is rotated in such a way that the centre of mass moves in a circle of radius r with a uniform speed v. We conclude that an external forec :A. `(mv^2)/r` must be acting on the central particleB. `(2mv^2)/r` must be acting on the central particleC. `(2mv^2)/r` must be acting on the systemD. `(2mv^2)/r` must be acting on the ring

A heavy ring fo mass m is clamped on the periphery of a light circular

1.	A heavy ring fo mass m is clamped on the periphery of a light circular disc.A small particle having equal mass is clamped at the centre of the disc. The system is rotated in such a way that the centre of mass moves in a circle of radius r with a uniform speed v. We conclude that an external forec :A. `(mv^2)/r` must be acting on the central particleB. `(2mv^2)/r` must be acting on the central particleC. `(2mv^2)/r` must be acting on the systemD. `(2mv^2)/r` must be acting on the ring
Answer» Correct Answer - C

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