Physics, 18.12.2020 02:00, zaniyastubbs9

A compressed spring stores 720 J of energy. A 1 kg block rests on the end of the spring. The spring is released and comes back to its uncompressed length pushing the block away. What is kinetic energy of the block as it leaves the spring? What is the speed of the block at this instant?

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A compressed spring stores 720 J of energy. A 1 kg block rests on the end of the spring. The spring...