Determine the velocity of the block

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The 50-kg block is hoisted up the incline using the cable and motor arrangement shown. The coefficient of kinetic friction between the   block   and   the   surface is m= 0.4. If the block is initially moving up the plane at v0 = 2  m>s, and at this instant (t  = 0) the motor  develops a tension in the cord of = (300 + 120 1t) N, where is in seconds, determine the velocity of the block when t  =  2 s.

Reference no: EM13948967

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