1. A 50-cm-long spring is suspended from the ceiling. A 390g mass is connected t

Question

1. A 50-cm-long spring is suspended from the ceiling. A 390g mass is connected to the end and held at rest with the spring unstretched. The mass is released and falls, stretching the spring by 22cm before coming to rest at its lowest point. It then continues to oscillate vertically.

A. What is the amplitude of the oscillation?

B.What is the frequency of the oscillation?

2. Two springs, each with spring constant 17N/m , connecting a 2.9kg block to two walls. The block slides on a frictionless surface. If the block is displaced from equilibrium, it will undergo simple harmonic motion. The block is displaced1.0 cm from equilibrium.

A. What is the magnitude of the restoring force?

Explanation / Answer

1)

change in GPE = change in U = U
0.39kg * 9.8m/s

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