EXAMIANS
Static friction is always __________ dynamic friction.
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A spherical body is symmetrical about its perpendicular axis. According to Routh's rule, the moment of inertia of a body about an axis passing through its centre of gravity is (where, M = Mass of the body, and S = Sum of the squares of the two semi-axes.)
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If the gravitational acceleration at any place is doubled, then the weight of a body will be
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The unit of angular acceleration is
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Moment of inertia of a circular section about an axis perpendicular to the section is
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Mass moment of inertia of a uniform thin rod of mass M and length (l) about its mid-point and perpendicular to its length is
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If a number of coplanar 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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One kg force is equal to
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If tension in the cable supporting a lift moving downwards is half the tension when it is moving upwards, the acceleration of the lift is
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A semicircular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi circular disc and horizontal surface is µ. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will
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