what is the period of a simple pendulum 80cm long on the earth and when it is in a freely falling elevator?

Question

anonymous · Answer

imagine a pendulum tilted to some angle.. and dropped frm a building.. what happesn?!

anonymous · Answer

$$T=2\pi \sqrt{L/g}$$  when you're on earth (not falling). So if you're free falling, what changes? Nothing. Falling doesn't remove the force of gravity. So the period should not change

anonymous · Answer

Does that help?

aravindg · Answer

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anonymous · Answer

are you like obliged to post that all the time? :P

anonymous · Answer

That's not right.  Free fall is essentially indistinguishable from weightlessness.  The pendulum will not oscillate.

anonymous · Answer

yup.. it will not oscillate!.. it ll just fall :D