Question a 500 gram mass is placed on a spring which lies, Ask an Expert

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Question: A 500 gram mass is placed on a spring which lies on a frictionless surface. The spring has a spring constant k = 750 (N/m) and is at its equilibrium length.

1. The spring is stretched so that it is 10.0 cm longer than its equilibrium length. How much elastic potential energy (in Joules) is stored in the spring now?

2. Now the spring from #1 is released, what is speed of the mass as it passes through the equilibrium point (x=0)?

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Category:- Physics
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