For a small body in contact with and sliding down the surface of a large stationary sphere, if friction is introduced, the distance along the sphere before the small body loses contact is

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Quizplus · Accepted Answer

When friction is introduced, it provides an additional component of force that acts to keep the small body in contact with the sphere for a longer path. This is because friction can oppose the motion of the sliding body, reducing its tendency to move away from the sphere due to inertia. Thus, the body travels a greater distance along the sphere before losing contact compared to the frictionless case.

For a Small Body in Contact with and Sliding Down