A 0.20 kg mass is oscillating at a small angle from a light string with a period of 0.78 s.
What is the length of the pendulum?

Question

A 0.20 kg mass is oscillating at a small angle from a light string with a period of 0.78 s.  What is the length of the pendulum?

mit · Answer

Answer: .15m    Explanation:

hongcuc2 · Answer

Answer:   L = 15 cm   Explanation:   T = 2π√(L/g)  L = g(T/2π)²  L = 9.8(0.78/2π)²  L = 0.151027... m  L = 15 cm