Three different pairs of dry surfaces have coefficients of static friction
PHYSICS · Multi-part · CBSE · Physics · Laws of Motion · Laws of Motion
Problem
Three different pairs of dry surfaces have coefficients of static friction 0.15, 0.35 and 0.62 respectively.
(a) Define the term angle of friction.
(b) Calculate the angle of friction for each pair, giving your answers correct to the nearest degree.
(c) Arrange the three surface pairs in ascending order of surface roughness and justify your answer on the basis of your results.