NEET Physics Question - Circular Motion - Dynamics of Circular Motion

Assertion (A): On an unbanked road, as the frictional force increases, the safe velocity limit for taking a turn also increases.

Reason (R): Banking of roads will increase the value of limiting velocity.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

Assertion (A) is true: On an unbanked road, the maximum safe velocity is \( v_{\text{max}} = \sqrt{mu_s gr} \). An increase in friction (\( \mu_s \)) leads to an increased \( v_{\text{max}} \).

Reason (R) is true: Banking of roads provides a component of the normal force for centripetal force, effectively increasing the limiting velocity. (R) is not the correct explanation for (A) as they represent different factors influencing safe velocity.

Rankers Physics

Assertion and Reason: Safe Velocity Limit on Roads

Solution:

Leave a Reply Cancel reply