Answer to Question #286503 in Physics for Kai

Question #286503

A 124.6-kg object is dropped from a height of 3.8m above a spring with a constant of 14235.8N/m. How much (in cm) will the spring be compressed?

Expert's answer

By conservation of energy:

"\\dfrac12kx^2=mgh,\\\\\\space\\\\\nx=\\sqrt{\\dfrac{2mgh}{k}}=0.8074\\text{ m}"

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