andrewyang1818 andrewyang1818

10-12-2022
Physics

Answered

A spring with k = 83 N/m hangs vertically next to a ruler. The end of the spring is next to the 15-cm mark on the ruler. If a 2.5-kg mass is now attached to the end of the spring, and the mass is allowed to fall, where will the end of the spring line up with the ruler marks when the mass is at its lowest position?

The answer is 74cm. Why is it incorrect to use F=kx instead of mgh=0.5kx^2?

Answer :

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