A 2.00-kg mass vibrates according to the equation x =

Chapter 5, Problem 74GP

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QUESTION:

A 2.00-kg mass vibrates according to the equation x = 0.650 cos 7.40t, where x is in meters and tin seconds. Determine (a) the amplitude, (b) the frequency, (c) the total energy, and (d) the kinetic energy and potential energy when x = 0.260 m.

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QUESTION:

A 2.00-kg mass vibrates according to the equation x = 0.650 cos 7.40t, where x is in meters and tin seconds. Determine (a) the amplitude, (b) the frequency, (c) the total energy, and (d) the kinetic energy and potential energy when x = 0.260 m.

ANSWER:

Step 1 of 4

The given equation is  

Comparing with SHM equation  

The amplitude of vibration  

The angular velocity  

Thus, the frequency is  

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