A point mass is suspended by an absolutely flexible line with constant length and negligible mass, and it moves periodically in the vertical plane under the action of gravity, which becomes a simple pendulum. When the pendulum vibrates under the condition of a pendulum angle less than 5° (now generally considered to be less than 10°), it can be approximately considered as simple harmonic motion. The period formula of the simple pendulum motion is: T=2π√(L/g). Where L refers to the pendulum length and g is the local gravitational acceleration.

Pendulum Calculator

Period: T²=4PI²*L/g

T = period

L = Pendulum length

g = acceleration due to gravity