Question

A pendulum, like a bobblehead, moves back and forth through a resting position. At what point on its path is the net force acting on the pendulum zero?

Answer 1

Answer Below

Step-by-step explanation:

In a simple pendulum, the net force acting on the pendulum is zero when the pendulum is at its resting position, which is also known as the equilibrium position or the midpoint of its swing.

The net force acting on a pendulum can be broken down into two components: the gravitational force and the tension force in the string or rod that supports the pendulum.

At the resting position, the gravitational force acting on the pendulum bob is directly downward, while the tension force in the string or rod is directed upward. These two forces are equal in magnitude but opposite in direction, resulting in a net force of zero. This balance of forces allows the pendulum to momentarily come to rest before it reverses its direction and starts swinging back in the opposite direction.