A pendulum of length L is suspended from the ceiling of an elevator.When the elevator is at rest the period of the pendulum is T.How does the period of the pendulum change when the elevator moves upward with constant velocity?
A)The period does not change.
B)The period increases.
C)The period decreases.
D)The period becomes zero.
E)The period increases if the upward acceleration is more than g/2 but decreases if the upward acceleration is less than g/2.

Question

Quizplus · Accepted Answer

The period of a pendulum is determined by the length of the pendulum and the acceleration due to gravity. In this case, as the elevator moves upward with a constant velocity, the acceleration experienced by the pendulum remains the same as that of gravity. Thus, the period of the pendulum remains unchanged.

A Pendulum of Length L Is Suspended from the Ceiling