A mass is resting on a rough plank. At initial instant a horizontal impulse is applied to the mass. If the velocity of mass at instant t is v and displacement upto this instant is S then correct graph is
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Velocity of block at time t is given by v = v 0 - μ μ gt, where v 0 is initial velocity and μ μ is the coefficient of friction. Thus v – t graph is a straight line having negative slope and a positive intercept on v axis. S – t curve will be having a decreasing slope till it reduces to zero because velocity of block decreases continuously and remains positive till the block comes to rest position.
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