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"When a person walks on a rough surface ...

"When a person walks on a rough surface the frictional force exerted by the surface on the person is opposite to the direction of his motion". Is it true or false ?

Text Solution

Verified by Experts

The correct Answer is:
False
Concept : Friction force opposite the relative motion of the surface of contact Where a person walks on a rough surface when be pushes the ground backward ground pushes the person in forward dierection Therefore the friction force will act forward (in the direction of motion of the person).
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When a person walks on a rough surface, the frictional force exerted by surface on the person is opposite to the direction of his motion. It is the force exerted by the road on the person that causes the motion.

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Knowledge Check

  • The frictional force between two surfaces is independent of

    A
    Nature of the surface
    B
    Size of the body
    C
    Area of contact
    D
    Mass of the body

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