Question

A spring-mass system consists of a 0.5 kg mass attached to a spring with a force constant of k = 8 N/m. You may neglect the mass of the spring. The system undergoes simple harmonic motion with an amplitude of 5 cm. Calculate the following: 1. The period T of the motion 2. The maximum speed Vmax 3. The speed of the object when it is at x = 3.5 cm from the equilibrium position. 4. The total energy E of the system.

Answer #1

And the amplitude of the motion is, A = 5 cm = 0.05 m.

1)

The period of the motion is given by

2)

The maximum speed is

3)

The velocity as a function of position is given
by

And so, at x = 3.5 cm = 0.035 m, the speed is given by

4)

The total energy is

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