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(A) : When a body moves on rough surface...

(A) : When a body moves on rough surface the mechanical energy is not constant
(R) : Friction is non conservative force

A

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

B

Both (A) and (R) are true and (R) is not the

C

(A) is true but ( R) is false

D

Both (A) and (R ) are false

Text Solution

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The correct Answer is:
A
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