(Answered) Question a 15 kg box is skid down a 6 meter high ramp to

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Question: A 15 kg box is skid down a 6 meter high ramp to pick up speed to do a veritcal loop-the-loop whose radius is 2 meters. All surfaces are frictionless. What is the speed at the top of the loop-to-loop? What is the normal force of the loop on the box at the top of its motion?

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