Civil Engineering :: Applied Mechanics
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If the tension in a cable supporting a lift moving upwards is twice the tension when the lift is movng downwards, the acceleration of the lift, is
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The masses of two balls are in the ratio of 2 : 1 and their respective velocities are in the ratio of 1 : 2 but in opposite direction before impact. If the coefficient of restitution is\(\frac { 1 } { 2 } \) , the velocities of separation of the balls will be equal to
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The angle which an inclined surface makes with the horiontal when a body placed on it is on the point of moving down, is called
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Work may be defined as
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A square hole is punched out of a circular lamina, the diagonal of the square being the radius of the circle. If r is the radius of the circle, the C.G. of the remainder from the corner of the square on the circumference will be
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A bullet weighing 200 g is fired horizontally with a velocity of 25 m/sec from a gun carried on a carriage which together with the gun weighs 100 kg. The velocity of recoil of the gun, will be
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The tension in a cable supporting a lift
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A satellite moves in its orbit around the earth due to
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If g1 and g2 are the gravitational accelerations on two mountains A and B respectively, the weight of a body when transported from A to B will be multiplied by
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