A body of mass 10kg rests on a rough inclined plane whose angle of tilt \(\theta\) is variable. \(\theta\) is gradually increased until the body starts to slide down the plane at 30o. The coefficient of limiting friction between the body and the plane
a
0.30
b
0.50
c
0.58
d
0.87
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Kenhinde
3 years ago
That is Sin/cos=tan
So...tan 30=0.58
Just note this, anytime you see incline or a vertical plane use Sin
Buh,if you see a horizontal plane in a question use Cos
Gracia's 🙂
