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You get a running start, pushing a box of mass 21 kg up to a ramp of grade 0.7 and friction coefficient 0.48. The box has a speed 10.9 m/s when it starts up the ramp, the same time that you let it go. The ramp ends at a platform of height 3.14 m.(a) What is the work done by friction as the box goes up the ramp?(b) What is the speed of the box just before it hits the ground?
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You get a running start, pushing a box of mass 21 kg up to a ramp of grade 0.7 and friction coeffici...
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