JEE Main & Advanced
Physics
NLM, Friction, Circular Motion
Question Bank
Static and Limiting Friction
question_answer
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 60o [KCET 2000]
A) 1.173
B) 1.732
C) 2.732
D) 1.677
Correct Answer:
B
Solution :
\[\mu =\tan \](Angle of repose)\[=\tan 60{}^\circ =1.732\]