posted by ilker .
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
period= 2PI (Length/acceleration)
b, c ) acceleration = g+- a
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.
thank you very much dude