EXAMIANS
One half of a vibration of a body, is called
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If two forces P and Q (P > Q) act on the same straight line but in opposite direction, their resultant, is
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A simple pendulum of length / has an energy E, when its amplitude is A. If the length of pendulum is doubled, the energy will be
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The ends of a string weighing w/metre are attached to two points at the same horizontal level. If the central dip is very small, the horizontal tension of the string throughout is
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The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to (where r is the distance of’the particle from centre of the earth)
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A ball is dropped from a height of 2.25 m on a smooth floor and rises to a height of 1.00 m after the bounce. The coefficient of restitution between the ball and the floor is
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The practical units of work, is
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A uniform rod 9 m long weighing 40 kg is pivoted at a point 2 m from one end where a weight of 120 kg is suspended. The required force acting at the end in a direction perpendicular to rod to keep it equilibrium, at an inclination 60° with horizontal, is
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The units of inertia of mass are
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The shape of a suspended cable for a uniformly distributed load over it is
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