Position A: At position A, the pendulum bob has potential energy at its maximum and kinetic energy at its minimum. This is because the bob is at its highest point and is not moving.
Position B: At position B, the pendulum bob has equal amounts of potential and kinetic energy. This is because the bob is halfway between its highest and lowest points and is moving with maximum speed.
Position C: At position C, the pendulum bob has potential energy at its minimum and kinetic energy at its maximum. This is because the bob is at its lowest point and is moving with maximum speed.
Position D: At position D, the pendulum bob has equal amounts of potential and kinetic energy. This is because the bob is halfway between its highest and lowest points and is moving with maximum speed.
Position E: At position E, the pendulum bob has potential energy at its maximum and kinetic energy at its minimum. This is because the bob is at its highest point and is not moving.