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JEE Main Physics question

PhysicsSystems of Particles and Rotational MotionJEE Main

A solid sphere rolls on a smooth horizontal surface at and then rolls up a smooth inclined plane of inclination with the horizontal. The mass of the sphere is . Find the height (in ) attained by the sphere before it stops. (Take )

Answer: 1.75

Solution

Taking the total kinetic energy (translational rotational) at the base as converting entirely to gravitational PE at the highest point

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Question ID VK-159202