Physics · WORK, ENERGY AND POWER

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): For a cyclist skidding to a halt on a road, the work done by the cycle on the road is equal in magnitude and opposite in sign to the work done by the road on the cycle. Reason (R): According to Newton's third law, the force exerted by the cycle on the road is equal and opposite to the force exerted by the road on the cycle. In the light of the above statements, choose the correct answer from the options given below:

1. A
   Both (A) and (R) are true and (R) is the correct explanation of (A).
2. B
   Both (A) and (R) are true but (R) is NOT the correct explanation of (A).
3. C
   (A) is true but (R) is false.
4. D
   (A) is false but (R) is true.