Question

Example 6.3 A cyclist comes to a skidding
stop in 10 m. During this process, the force
on the cycle due to the road is 200 N and
is directly opposed to the motion. (a) How
much work does the road do on the cycle?
(b) How much work does the cycle do on
the road ?​

Answer 1

Answer:

Distance D=10m,ForceF=200N

As,Work done W=F.D

so,work done by the cyclist on the road =−10×200=−2000J

Work done by the road on the cyclist=10×200=2000J

hence,option for the first part the answer is -2000J and for the second part the answer is 2000J is correct.

Request:

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