Question

At what position does the pendulum have maximum and minimum acceleration

Answer 1

At extreme position maximum acceleration and at mean position minimum acceleration

Answer 2

The pendulum have maximum and minimum acceleration where the velocity is a maximum. At the elevated point of its motion, kinetic energy is least (i.e. zero) and potential energy is greatest. The acceleration is a maximum at the endpoints of the pendulum, and a least (zero) in the center, at the lowest point. The coercion performing are tension, gravity, and friction.