# When a body rolls over another, frictional force experienced by the body is known as _______________ friction.

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When a body rolls over another, frictional force experienced by the body is known as _______________ friction.

(a) sliding

(b) rolling

(c) static

(d) none of the mentioned

The question was asked in final exam.

My question is from Types of Friction in section Friction of Machine Kinematics

## 1 Answer

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by (106k points)
Right option is (b) rolling

Easiest explanation: When a body slides over another, the frictional force experienced by the body is known as sliding friction.

When a body rolls over another, frictional force experienced by the body is known as rolling friction.

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