EXAMIANS
The center of gravity of a quadrant of a circle lies along its central radius (r) at a distance of
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The impact between two lead spheres is approximately equal to an __________ impact.
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The angular velocity (in rad/s) of a body rotating at N revolutions per minute is
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If u₁ and u₂ are the velocities of two moving bodies in the same direction before impact and v₁ and v₂ are their velocities after impact, then coefficient of restitution is given by
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A redundant frame is also called __________ frame.
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In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.
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One joule is equal to
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The maximum efficiency of a screw jack is
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The forces, which meet at one point and their lines of action also lie on the same plane, are known as
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The maximum frictional force which comes into play when a body just begins to slide over another surface is called
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