“When a person walk on rough surface the...

“When a person walk on rough surface then frictional force act in opposite direction of motion” - True or false ?

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False when person walk on rough surface it pushes surface in backward direction frictional force act in forward direction .

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Assertion: When a person walks on a rough surface, the frictional force exerted by the surface on the person is opposite to the direction of tendenc of motion his leg. Reason: If a body moves with constant velocity, then it means that body is moving along straight line & there is no acceleration.

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Assertion: Frictional force is the component of contact force parallel to the surface. Reason: Friction force always opposes the motion of a body.

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KUMAR PRAKASHAN-LAW OF MOTION-SECTION-C(OBJECTIVE QUESTIONS) (VSQS)

Write value of safe speed on frictionless level circular track.
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Why isolated (single) force does not exist in nature ?
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Can we get out of smooth surface by taking jump on it ?
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“When a person walk on rough surface then frictional force act in oppo...
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Area enclosed by Frarr t graph for given body in 1 sec. interval is 10...
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