Doc Al said:Hint: Apply Newton's 2nd law.
A simple pendulum is a weight suspended from a fixed point that is allowed to swing freely back and forth under the influence of gravity.
Centripetal acceleration is the acceleration experienced by an object moving in a circular motion, directed towards the center of the circle.
In a simple pendulum, the centripetal acceleration is provided by the tension in the string that keeps the pendulum bob moving in a circular motion.
The centripetal acceleration for a simple pendulum can be calculated using the formula a = (4π²L)/T², where L is the length of the string and T is the period of the pendulum.
The centripetal acceleration of a simple pendulum is directly proportional to the length of the string. This means that a longer string will result in a larger centripetal acceleration, while a shorter string will result in a smaller centripetal acceleration.