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

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

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Strength of Materials
In actual machines

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

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