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(A) : In the given Fig . 7 . 184 , a for...

(A) : In the given Fig . 7 . 184 , a force 20 N pulls a block of mass 10 kg on a rough floor . If coefficient of friction is `mu = 0.4` , force of friction acting on the block will be 20 N .

(R) : Force of kinetic friction is slightly less than the limiting value of force of friction .

A

If both A and R are true and R is the correct explanation of A .

B

If both A and R are true but R is not correct explanation of A .

C

If A is false but R is false .

D

If A is false but R is true

Text Solution

Verified by Experts

The correct Answer is:
B
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