In the gure here, a block or Ice slides down a trlctlonless ramp at angle U=bl.U ' while an Ice worker pulls on the block (Via a rope) With a force that has a magnitude of 50.0 N and is directed up the ramp. As the block slides down through distance d = 0.450 m along the ramp, its kinetic energy increases by 80.0 J. How much greater would its kinetic energy have been if the rope had not been attached to the block? {D Unit Current Attempt in Progress During spring semester at MIT, residents of the parallel buildings of the East Campus dorms battle one another with large catapults that are made with surgical hose mounted on a window frame. A balloon lled with dyed water is placed in a pouch attached to the hose, which is then stretched through the width of the room. Assume that the stretching of the hose obeys Hooke's law with a spring constant of 130 N/m. lfthe hose is stretched by 3.00 m and then released, how much work does the force from the hose do on the balloon in the pouch by the time the hose reaches its relaxed length? Number I Units 1}