EXAMIANS
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
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The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of
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The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60° produce resultant of Vl3 kg. These forces are
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The effort required to lift a load W on a screw jack with helix angle a and angle of friction<="" div="">
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A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of
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Frictional force encountered after commencement of motion is called
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A single force and a couple acting in the same plane upon a rigid body
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The resultant of the following three couples 20 kg force, 0.5 m arm, + ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be
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A pair of smith’s tongs is an example of the lever of
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Which of the following is not the unit of energy
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