JAMB Physics 2012 Objective — Question 9

Question 9 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2012 Objective paper, with the correct answer and a full explanation.

If a freely suspended object is pulled to one side and released, it oscillates about the point of suspension because the

A. acceleration is directly proportional to the displacementCorrect
B. motion is directed away from the equilibrium point
C. acceleration is directly proportional to the square of the displacement
D. velocity is minimum at the equilibrium point

Explanation

This is the defining condition of simple harmonic motion: the restoring acceleration is directly proportional to the displacement from the equilibrium point, and directed towards it.

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