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The image shows a pendulum in simple harmonic motion. The pendulum starts at A and swings to E.


Which labels are correct? Check all that apply.

E: Net force is zero.
D: Velocity is decreasing. Acceleration is increasing.
A: Velocity is zero.
C: Acceleration is maximum.
B: Velocity is decreasing. Net force is decreasing.
E: Velocity is maximum.
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The image shows a pendulum in simple harmonic motion The pendulum starts at A and swings to E Which labels are correct Check all that apply E Net force is zero class=

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D: Velocity is decreasing. Acceleration is increasing.

A: Velocity is zero.

The pendulum starts from rest at A, hence the velocity of pendulum at A is zero.

So velocity is zero at A

As the pendulum swings from A to E, it first gains speed from A to C and the speed decreases from C to E coming to a momentary stop at E.

Similarly, as the pendulum swings from A to E, the acceleration first decreases A to C (becoming zero at C) and the acceleration increases from C to E coming to a maximum at E.

So

D: Velocity is decreasing. Acceleration is increasing.

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