In Figure a block of ice slides down a frictionless ramp at angle = 50o while

In Figure a block of ice slides down a frictionless ramp at angle θ = 50o while an ice worker pulls on the block (via a rope) with a force Fr that has a magnitude of 50N and is directed up the ramp. As the block slides thorugh distance d = 0.50m along the ramp, its kinetic energy icnreases by 80J. How much greater would its kinetic energy have been if the rope had not been attached to the block?

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