Frictional Force and Motion – Rankers Physics
Topic: Laws of Motion
Subtopic: Friction

Frictional Force and Motion

Assertion (A): Due to frictional force acting on a body, the body is always retarded by friction.
Reason (R): Friction force opposes the motion of object.
 
(1) Both (A) & (R) are true and the (R) is the correct explanation of the (A)
(2) Both (A) & (R) are true but the (R) is not the correct explanation of the (A)
(3) (A) is true but (R) is false
(4) (A) is false but (R) is true

Solution:

Friction can cause motion (e.g., walking, car acceleration), so (A) is false. Friction opposes *relative* motion, not necessarily the overall motion of the object. Hence, (R) is also false.

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