EXAMIANS
For a self locking machine, the efficiency must be
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On a ladder resting on smooth ground and leaning against vertical wall, the force of friction will be
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The moment of inertia of a solid cone of mass ‘m’ and base radius ‘r’ about its vertical axis is
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Coplanar concurrent forces are those forces which
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In a screw jack, the effort required to lower the load is __________ the effort required to raise the same load.
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The mechanical advantage of a lifting machine is the ratio of
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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 trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span
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The periodic time of a particle with simple harmonic motion is _________ proportional to the angular velocity.
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The maximum frictional force which comes into play when a body just begins to slide over another surface is called
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