# physical

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What is the period of a simple pendulum that is 1.27 m long in each situation?

a) in the physics lab

b) in an elevator accelerating at 2.15 m/s2 upward

c) in an elevator accelerating 2.15 m/s2 downward

• physical -

period= 2PI (Length/acceleration)

a) acceleration=g
b, c ) acceleration = g+- a

• physical -

I in past times made a neat demo for classes. Take a short (1/2 meter) string, with a bob on it, set it into motion at near the floor, then raise it rapidly upward.

• physical -

thank you very much dude

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