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A body starts sliding down from the top of an inclined plane. The upper half of the inclined plane AB is smooth and the lower half BC is rough. The block just comes to rest at the bottom. Find the coefficient of friction betw ...
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The distance 'x' moved by a body under the action of a force varies with time 't' as x=3t^2 + 4t +5, where 'x' is expressed in metre and 't' in second. If the work done by force in the first 2 seconds is 60 J, kinetic energy ...
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A body of mass 2 kg is projected at an angle of 60° to the horizontal with a speed of 20 m/s. The work done by gravity by the time it makes 30° to the horizontal (g=10m/s)? ...
