In Fig. 7-30, a block of ice slides down a frictionless
Chapter , Problem 19(choose chapter or problem)
In Fig. 7-30, a block of ice slides down a frictionless ramp at angle 50( while an ice worker pulls on the block (via a rope) with a force that has a magnitude of 50 N and is directed up the ramp. As the block slides through distance d 0.50 m along the ramp, its kinetic energy increases by 80 J. How much greater would its kinetic energy have been if the rope had not been attached to the block?
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