# What is the equation of motion of simple pendulum?

## What is the equation of motion of simple pendulum?

By applying Newton’s secont law for rotational systems, the equation of motion for the pendulum may be obtained τ=Iα⇒−mgsinθL=mL2d2θdt2 τ = I α ⇒ − m g sin ⁡ θ L = m L 2 d 2 θ d t 2 and rearranged as d2θdt2+gLsinθ=0 d 2 θ d t 2 + g L sin ⁡ If the amplitude of angular displacement is small enough, so the small angle …

## What is equation of motion derivation?

Hence, these equations are used to derive the components like displacement(s), velocity (initial and final), time(t) and acceleration(a). Therefore they can only be applied when acceleration is constant and motion is a straight line. The three equations are, v = u + at.

What law of motion is pendulum?

Newton’s third law states that every action has a reaction of equal force. This law shows that the forces acting on a pendulum can cancel each other. Physicists use Newton’s first, second and third laws to prove the horizontal string tension moves the pendulum without regard to mass or gravity.

What is the formula for a pendulum?

The formula for the pendulum is the 9.8(time/2pi)^2=L. This is in meters and this is for a full swing ( tick and toc ). The length calculated it actually for the effective mass. makes the pendulum seem shorter.

### What is the simple pendulum experiment?

A simple pendulum is a typical laboratory experiment in many academic curricula. Students are often asked to evaluate the value of the acceleration due to gravity, g, using the equation for the time period of a pendulum. Rearranging the time period equation,

### What is the physics of the pendulum?

A pendulum is a weight suspended from a pivot so that it can swing freely. When a pendulum is displaced sideways from its resting, equilibrium position, it is subject to a restoring force due to gravity that will accelerate it back toward the equilibrium position.

What is a simple pendulum in physics?

Definition of simple pendulum. : an ideal pendulum consisting of a point mass suspended by a weightless inextensible perfectly flexible thread and free to vibrate without friction —distinguished from physical pendulum.