Question

Is friction necessary for a body to roll?why?

Answer 1

: Friction is necessary for a body to roll purely on a level horizontal ground. Statement-2: When the body is rolling purely, the velocity of the point of contact should be zero relative to the surface in contact

Bodies that touch at surfaces or points experience reaction forces at all points of contact. ... The force due to friction doesn't necessarily act to oppose the motion of the body but acts to oppose slipping or sliding along the contact surface. A body can roll without slipping.

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Answer 2

Answer:

Hai friends,

Here is ur ans;

The force due to friction doesn't necessarily act to oppose the motion of the body but acts to oppose slipping or sliding along the contact surface . A body can roll without slipping