A small box of mass 0.021 kg compresses a spring (k = 420 N/m) a distance of 0.070 m and is released. It travels on a horizontal, frictionless track and then enters a vertical loop. The loop has a radius of 0.24 m. What is the speed of the block when it reaches the top of the loop?
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A small box of mass 0.021 kg compresses a spring (k = 420 N/m) a distance of 0.070 m and is released...
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