When one body rolls over the surface
of another body, the resistance to its
motion is called-
-
A.
Rolling friction
-
B.
Electrostatic friction
-
C.
Sliding friction
-
D.
Static friction
Correct Answer:
A. Rolling friction
Explanation:
Rolling friction occurs when an object, such as a ball or wheel, rolls across a surface. It is the force that resists the motion of a rolling body. This type of friction is generally much lower than sliding friction because the contact area between the two surfaces is minimal at any given moment. In contrast, static friction acts on objects at rest, while sliding friction occurs when one surface rubs against another. Therefore, the resistance encountered during rolling motion is specifically defined as rolling friction.
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