What would be the boxs velocity at the top of the ramp

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Q. A ramp is 25 meters long and is inclined at 30 degrees with the horizontal. A block of mass 25 is pulled up at a constant acceleration of 1m/s2. The coefficient of kinetic friction is 0.15. If the box starts at rest from the bottom, what will be the box's velocity at the top of the ramp?

Q. Two blocks, of mass m1 = 279 g and m2 = 452 g, are connected by a massless cord that is wrapped around a uniform disk of mass M = 542 g and radius R = 12.0 cm. The disk can rotate without friction about a fixed horizontal axis through its center; the cord cannot slip on the disk. The system is released from rest. Find (a) the magnitude of the acceleration of the blocks, (b) the tension T1 in the cord at the left and (c) the tension T2 in the cord at the right.

Reference no: EM1345773

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