Question: 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

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. Does the period increase, decrease, or remain the same when the elevator
(a) Moves upward with constant speed
(b) Moves upward with constant acceleration?

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