What is the speed of box just before it encounters spring
A 3 kg box is released from rest on a smooth curved surface 5 m above the bottom as shown. At the bottom the box encounters a spring with a spring constant k=400 N/m. What is the speed of the box just before it encounters the spring?
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Determine a velocity versus time graph of their descent, and estimate the maximum freefall distance that would allow a safe landing speed of 6m/s.
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