For uniform speed, net force = 0. So mg sinθ = μmg cosθ, which gives μ = tanθ
Back to JEE Main 2021 Mechanics
JEE Main 2021 — Physics Mechanics
easy
mcq
2021
Official previous-year question
Verified 30 May 2026.
Question
A block of mass m slides down an inclined plane of inclination θ with uniform speed. The coefficient of friction between the block and the plane is:
Options
- Asinθ
- Bcosθ
- Ctanθ
- Dcotθ
Solution
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