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Problem: A 75 kg rock sits quietly on a spring, having displaced the end of the spring by 0.15 m.
Part A: What is the spring constant?
Please show how you obtain the spring constant.
A 1 kg block attached to a spring with force constant 25 N/m oscillates on a horizontal, frictionless air track. At t = 0, the block is released from rest at x = ?3 cm. (At that time the spring is compressed by 3 cm).
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