Strength of Materials
A body of weight W on inclined plane of a being pulled up by a horizontal force P will be on the point of motion up the plane when P is equal to

Wan(a-)
W sin (a + $)
Wtan(a + <|))
W

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Strength of Materials
In actual machines

mechanical advantage is less than velocity ratio
mechanical advantage is unity
mechanical advantage is equal to velocity ratio
mechanical advantage is greater than velocity ratio

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Strength of Materials
Which one of the following statements is not correct

the angle of repose is equal to angle of friction
the sine of the angle of repose is equal to coefficient to friction
the tangent of the angle of repose is equal to coefficient of friction
the tangent of the angle of friction is equal to coefficient of friction

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