Q. The friction experienced by a body, when at rest, is known as

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Q. The moment of inertia of a solid sphere of mass m and radius r is

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Q. The centre of gravity of a quadrant of a circle lies along its central radius (r) at a distance of

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Q. The horizontal range of a projectile (R) is given by

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Q. Which of the following are vector quantities?

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Q. The maximum mechanical advantage of a lifting machine is

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Q. A machine having an efficiency greater than 50%, is known as

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Q. The impact between two lead spheres is approximately equal to an __________ impact.

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Q. Moment of inertia of a triangular section of base (b) and height (h) about an axis passing through its vertex and parallel to the base, is __________ than that passing through its C.G. and parallel to the base.

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Q. If a body is thrown upwards, then the gravitational acceleration is taken as zero.

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Q. An ideal machine is one whose efficiency is

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Q. The energy possessed by a body, for doing work by virtue of its position, is called

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Q. The potential energy stored by a spring in compression, is called strain energy.

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Q. The moment of a force

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Q. The frequency of oscillation of a compound pendulum is(where kG = Radius of gyration about the centroidal axis, and h = Distance between the point of suspension and C.G. of the body.)

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Q. In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is

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Q. The total motion possessed by a body, is called

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Q. The matter contained in a body, is called

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Q. The centre of percussion is below the centre of gravity of the body and is at a distance equal to

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Q. If a number of coplaner forces acting at a point be in equilibrium, the sum of clockwise moments must be __________ the sum of anticlockwise moments, about any point.

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