Assertion: The direction of the frictional force on an object is opposite to the actual motion (kinetic friction) or the impending motion (static friction) of the object relative to the surface with which it is in contact.

Question

Assertion: The direction of the frictional force on an object is opposite to the actual motion (kinetic friction) or the impending motion (static friction) of the object relative to the surface with which it is in contact.

Reason: Friction force always opposes the motion.

Smart Achievers · Accepted Answer

(3)

Frictional force between two surfaces in contact always opposes relative motion between the surfaces in contact.

Solution

Q.
Assertion: The direction of the frictional force on an object is opposite to the actual motion (kinetic friction) or the impending motion (static friction) of the object relative to the surface with which it is in contact.

Reason: Friction force always opposes the motion.

1 Both A and R are true and R is the correct explanation of A

2 Both A and R are true and R is NOT the correct explanation of A

3 A is true but R is false

4 A is false but R is true

Ans.
(3)

Frictional force between two surfaces in contact always opposes relative motion between the surfaces in contact.

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