Question

A mass and spring system has mass m = 1.2 kg. The spring constant is unknown. Also, neglect friction for this system. A) When the system is compressed by 1.00 cm and let go the frequency of the periodic motion is 0.75 Hz. What is the value of the spring constant k? B) What is the maximum speed vmax of the motion? C) What is the total energy TE = PE + KE in the system?

Answer #1

A.

f = 0.75 Hz

m = 1.2 kg

B.

According to Law of conservation of energy

C.

When PE is maximum KE is zero and when KE is maximum PE is zero and

If PE = maximum, then KE = 0

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