Question

Name the friction that acts on a body in motion :-
a) Static friction
b) sliding friction
c) rolling friction​

Answer 1

Answer:

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(B) sliding friction

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Answer 2

Static Friction Edit

Static friction exists between a stationary object and the surface on which it is resting. It prevents an object from moving against the surface.

Example: Static friction prevents an object like a book from falling of the desk, even if the desk is slightly tilted.

Sliding Friction Edit

Sliding friction occurs between objects as they slide against each other.

When sliding friction is acting there must be another force existing to keep the body moving.

Example: When a man is pushing an object on a rough surface the force acting is called "sliding friction".

Rolling friction is the resistive force that slows down the motion of a rolling ball or wheel. It is also called rolling resistance.