AP EAMCET · PHYSICS · Work Power Energy
A cyclist comes to a skidding stop in \(10 \mathrm{~m}\). During this process, the force on the cycle due to the road is \(200 \mathrm{~N}\) and is directly opposite to the motion. How much work does the road do on the cycle?
- A \(2000 \mathrm{~J}\)
- B \(-2000 \mathrm{~J}\)
- C \(-1000 \mathrm{~J}\)
- D 0
Answer & Solution
Correct Answer
(B) \(-2000 \mathrm{~J}\)
Step-by-step Solution
Detailed explanation
Displacement travelled by cyclist to reach skidding stop, \(s=10 \mathrm{~m}\) Force on the cyclist due to road, \(F=200 \mathrm{~N}\) Since, force is applied directly opposite to motion (or displacement), hence \(\theta=180^{\circ}\) \(\therefore\) Work done by the road on the…
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