AP EAMCET Engineering 17 Sep 2020 Shift 2 Paper

Displacement travelled by cyclist to reach skidding stop, s=10m
Force on the cyclist due to road,
F=200N
Since, force is applied directly opposite to motion (or displacement), hence θ=180∘
∴ Work done by the road on the cycle
W=Fs‌cos‌θ=200×10×cos‌180∘=−2000J