EXAMIANS
Instantaneous center is at infinity when the angular velocity is
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A block of weight 50 kg is placed on a horizontal plane. When a horizontal force of 18 kg is applied, the block is just on the point of motion. The angle of friction is
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‘P’ is the force acting on a body whose mass is ‘m’ and acceleration is ‘f’. The equation P - mf= 0, is known as
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A simple pendulum of length 1 has an energy E when its amplitude is A. If its amplitude is increased to 2A, the energy becomes
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Two parallel forces 20 kg and 15 kg act. In order that the distance of the resultant from 20 kg force may be the same as that of the former resultant was from 15 kg, the 20 kg force is diminished by
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The centre of gravity of a quadrant of a circle lies along its central radius at a distance of
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The ratio of the ranges on the inclined plane with motion upward and with motion downward for a given velocity, angle of projection will be
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The characteristic of a couple is:
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A shell travelling with a horizontal velocity of 100 m/sec explodes and splits into two parts, one of mass 10 kg and the other of 15 kg. The 15 kg mass drops vertically downward with initial velocity of 100 m/sec and the 10 kg mass begins to travel at an angle to the horizontal of tan”1 x, where x is
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The following factor affects the orbit of a satellite up to an altitude of 720 km from the earth's surface
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