EXAMIANS
The C.G. of a solid hemisphere lies on the central radius 3r
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If a body is acted upon by a number of coplanar non-concurrent forces, it may
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The velocity of a particle (v) moving with simple harmonic motion, at any instant is given by (where, r = Amplitude of motion, and y = Displacement of the particle from mean position.)
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A weight of 1000 N can be lifted by an effort of 80 N. If the velocity ratio is 20, the machine is
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The centre of percussion is below the centre of gravity of the body and is at a distance equal to
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The center of percussion of a solid cylinder of radius ‘r’ resting on a horizontal plane will be
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The term 'Centroid' is
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A rubber ball is dropped from a height of 2 m. If there is no loss of velocity after rebounding, the ball will rise to a height of
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The impact between two lead spheres is approximately equal to an __________ impact.
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According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)
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