EXAMIANS
The unit of force in S.I. system of units is
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The forces, which meet at one point and their lines of action also lie on the same plane, are known as
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A lead ball with a certain velocity is made to strike a wall, it falls down, but rubber ball of same mass and with same velocity strikes the same wall, it rebounds. Select the correct reason from the following:
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The moment of inertia of a thin rod of mass 'm' and length 'l', about an axis through its centre of gravity and perpendicular to its length is
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The velocity ratio of a differential wheel and axle with 'D' as the diameter of effort wheel and d1 and d2 as the diameters of larger and smaller axles respectively, is
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One joule is equal to
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The friction experienced by a body, when in motion, is known as
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The centre of gravity of a uniform lamina lies at
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The resultant of the two forces ‘P’ and ‘Q’ is ‘R’. If ‘Q’ is doubled, the new resultant is perpendicular to ‘P’. Then
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A screw jack used for lifting the loads is
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