Each question consists of two statements Assertion and Reason. Choose any one of the following four responses.
Assertion: When a sphere rolls on a horizontal table it slows down and eventually stops.
Reason: When the sphere rolls on the table, both the sphere and the surface are deformed near the contact. As a result, the sphere slows down.
Text Solution
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In rolling friction, surfaces in contact get momentarily deformed a little, and this results in a
finite area of contact between the sphere and the surface and hence motion is opposed by component of contact force parallel to surface. Hence, rolling sphere on horizontal surface eventually stops.
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