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In gravity- free space, a particle is in contact with the inner surface of a hollow vertical cylinder and moves in horizontal circular path along the surface. There is some friction between the particle and the surface. The retardation of the particle is
detailed solution
Correct option is D
Normal reaction N is the only radially inward external force acting on the particle Frictional force fk is horizontal and tangential.fk = µk.N = µk.mv2/RTalk to our academic expert!
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Velocity vector and acceleration vector in a uniform circular motion are related as
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