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Physics · WORK, ENERGY AND POWER

हिन्दी

A cyclist comes to a skidding stop in \( 10\text{ m} \). During this process, the force on the cycle due to the road is \( 200\text{ N} \) opposing its motion. The work done by the cycle on the road is:

  1. \( -2000\text{ J} \)
  2. \( +2000\text{ J} \)
  3. \( -200\text{ J} \)
  4. \( 0\text{ J} \)

Correct answer · Option 4

\( 0\text{ J} \)

Explanation

Although the cycle exerts an equal and opposite force of \( 200\text{ N} \) on the road by Newton's third law, the road undergoes zero displacement. Hence, the work done on the road is zero.
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