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Assertion : In an elastic collision of ...

Assertion : In an elastic collision of two billiard balls, the total knetic energy is conserved during the short time of oscillation of the balls ( i.e. when they are in contact ) .
Reason : Energy spent against friction does not follow the law of conservation of energy .

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 correct explanation of (A)

C

(A) is true but (R ) is false

D

(A) is false and (R ) is false

Text Solution

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The correct Answer is:
D
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