A particle on a rough slope inclined at is on the point of slipping down. What is the coefficient of friction?
Answer and explanation
Correct answer: D. 0.47
- Step 1: In limiting equilibrium, with and . Step 2. , which rounds to 0.47. Answer: 0.47. Why not the others: 0.42 is ; 0.91 is ; 2.14 is , from using the wrong angle.
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