Question

A box is lying on an inclined plane what is the coefficient of static friction if the box starts sliding when an angle of inclination is 60^o

• A. 1.173
• B. 1.732
• C. 2.732
• D. 1.677

Answer 1

Answer: (B)

1.732

Answer 2

$\mu = \tan$ (Angle of repose)

$= \tan 60 ^ { \circ } = 1.732$