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A small block of mass m kept on a rough inclined surface of inclination 'A' fixed in a elevator.The elevator goes up witha uniform velocity v and the block does not slide on the wedge.The work done by the force of friction in time t will be??
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A small block of mass m kept on a rough inclined surface of inclination 'A' fixed in a elevator.The elevator goes up witha uniform velocity v and the block does not slide on the wedge.The work done by the force of friction in time t will be??
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A block of mass m is placed at relative equilibrium on an inclined plane which itself is placed on a lift moving upwards with constant velocity 
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, c) mgsin(2)/2 , d) mgcos^2
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A solid sphere of mass m and radius R released from the top of an inclined plane such that it rolls down without slipping. If the coefficient of friction is µ and angle of inclination is ø with horizontal, then force of friction acting on the body is
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