Question

A bicyclist comes to a skidding stop in $10\, m$. During this process, the force on the bicycle due to the road is $200\, N$ and is directly opposed to the motion. The work done by the cycle on the road is

• A. $+2000\, J$
• B. $-200 \,J$
• C. $zero$
• D. $-20000\, J$

Answer 1

Answer: (C)

$zero$

Answer 2

As the road does not move at all, therefore, work done by the cycle on the road must be zero.