If an object just begins to slide on a surface inclined at 30o to the horizontal,the coefficient of friction is
A
√3
B
√3/2
C
1/√2
D
1/√3
Verified Correct Answer: D.
Physical Principles & Numerical Solution
A body sliding down a plane inclined at 30o to the horizontal, has coefficient of friction
= tan 30o = 1/√3
Source: Myschool Past Questions Archive (Record #12269)