NEET Physics Question - Circular Motion

Assertion (A): In turning a vehicle safely with uniform speed in circular path friction is static in nature and towards centre.

Reason (R): In turning a vehicle in circular path with increasing speed friction is kinetic in nature and tangential in direction.

(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) Both (A) and (R) are false

Solution:

For safe turning at uniform speed, static friction provides the necessary centripetal force towards the center. So (A) is true. If speed increases, kinetic friction might act but it's not tangential; it opposes relative motion. So (R) is false.

Rankers Physics

Friction in Circular Turn

Solution:

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