If an object just begins to slide on a surface inclined at 30º to the horizontal,the coefficient of friction is?
A.
√3
B.
\(\frac{√3}{2}\)
C.
\(\frac{1}{√2}\)
D.
\(\frac{1}{√3}\)
Correct answer is D
A body sliding down a plane inclined at 30o to the horizontal,
Has coefficient of friction = tan 30º or \(\frac{1}{√3}\)
