2. Which of the following is true for a system consisting of a mass oscillating

Question

2. Which of the following is true for a system consisting of a mass oscillating on the end of an ideal spring? (A) The kinetic and potential energies are equal to each other at all times. (B) The kinetic and potential energies are both constant. ((C) The maximum potential energy is achieved when the mass passes through its equilibrium position. (D) The maximum kinetic energy and maximum potential energy are equal, but occur at different times. (E) The maximum kinetic energy occurs at maximum displacement of the mass from its equilibrium position

Explanation / Answer

(D) the max K.E and max P.E are equal, but occur at different times.

The max K.E occurs when mass passes through equilibrium position and max P.E occurs when mass is at the extreme end position.

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