Home Physics Newton's Laws of Motion Assertion & Reason Given below are two statements; one is label…
Physics Newton's Laws of Motion Assertion & Reason MCQ (Single Correct)

Given below are two statements; one is labelled as Assertion

A
and the other is labelled as Reason (R). Assertion : As the frictional force increases, the safe velocity limit for taking a turn on an unbanked road also increases.
Reason (R): Banking of roads will increase the value of limiting velocity.
In the light of the above statements choose the correct answer from the option given below
Both A and R are true and R is not the correct explanation of A.
B
A is true but R is false.
C
A is false but R is true.
D
Both A and R are true and R is the correct explanation of A .

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Text Solution

Verified by Experts
The correct answer is:
A

Both and are true and is not the correct explanation of A.

On an unbanked road, friction provides the necessary centripetal force

Thus, with increase in friction, safe velocity also increases. When the road is banked with angle of then its limiting velocity is given by

Thus, limiting velocity increase with banking of road.

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