EXAMIANS
If a flywheel increases its speed from 10 rpm to 20 rpm in 10 seconds, then its angular acceleration is
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The apparent weight of a man in a moving lift is less than his real weight when it is going down with
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A particle is dropped from the top of a tower 60 m high and another is projected upwards from the foot of the tower to meet the first particle at a height of 15.9 m. The velocity of projection of the second particle is
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A projectile is fired at an angle ‘θ’ to the vertical. Its horizontal range will be maximum when ‘θ’ is
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A cable loaded with 10 kN/m of span is stretched between supports in the same horizontal line 100 m apart. If the central dip is 10 m, then the maximum and minimum pull in the cable respectively are
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A shell of mass 100 kg travelling with a velocity of 10 m/sec breaks into two equal pieces during an explosion which provides an extra kinetic energy of 20000 Joules. If the pieces continue to move in the same direction as before, then the speed of the faster one must be
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The product of mass and velocity of a moving a body, is called
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The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is
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The motion of a bicycle wheel is
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A cable loaded with 0.5 tonne per horizontal metre span is stretched between supports in the same horizontal line 400 m apart. If central dip is 20 m, the minimum tension in the cable, will be
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