Posted by **Ray** on Tuesday, September 21, 2010 at 8:10pm.

a pendulum of the length L is suspended from the ceiling of an elevator. When the elevator is at rest , the period of the pendulum is T. In instant when the pendulum reaches its highest position the elevator starts the free fall. What is the period of the pendulum if the elevator is freely falling?

- physiscs -
**bobpursley**, Tuesday, September 21, 2010 at 8:19pm
If the elevator is falling, the pendulum is falling, so it is not oscillating.

- physiscs -
**Ray**, Tuesday, September 21, 2010 at 9:01pm
so what?

- physiscs -
**Jay**, Monday, March 11, 2013 at 12:47am
For other viewers who didn't understand like Ray.. Since its not oscillating there is no period, therefore it is 0.

- physics -
**Caspar**, Wednesday, December 3, 2014 at 8:49pm
No oscillation means that the period is infinity. If the period were zero, the pendulum would be moving with infinite velocity.

- physiscs -
**Anonymous**, Thursday, September 22, 2016 at 7:15pm
0 second

## Answer This Question

## Related Questions

- Physics - A block of mass m=25 kg is hung by a massless rope of length L=1.90 m ...
- Math - Linear Equations - "the period of a pendulum, T (in seconds) varies ...
- wcccd - The period p of a pendulum, or the time it takes for the pendulum to ...
- Physics - A large pendulum with a 200-lb gold-plated bob 12 inches in diameter ...
- Physics - Q. The time period of seconds pendulum in a free falling elevator is ...
- physics - A pendulum has a length of 1m. What is the period of this pendulum? ...
- physics - The period of a simple pendulum is measured to be 4.0 seconds in a ...
- physics - The period of a simple pendulum is measured to be 4.0 seconds in a ...
- math - The formula T=2*pi*sqrt[L/g] gives the period of a pendulum of length l ...
- physics - A Foucault pendulum is designed to demonstrate the effect of the Earth...

More Related Questions