The spring pendulum makes 120 oscillations in 1 minute. What is the displacement of the pendulum

The spring pendulum makes 120 oscillations in 1 minute. What is the displacement of the pendulum in 2 minutes if the amplitude of the oscillations is 20 cm?

Data: n1 (initial number of oscillations) = 120 oscillations; t1 (first time) = 1 min; t2 (second time) = 2 minutes; A (vibration amplitude) = 20 cm.

1) The number of oscillations of the used spring pendulum in 2 minutes: t1 / n1 = T (period) = t2 / n2, whence n2 = t2 * n1 / t1 = 2 * 120/1 = 240 oscillations.

2) So the pendulum made a full number of oscillations, then at the end of the 2nd minute it returned to its original position and its movement is equal to zero.

Answer: The movement of the spring pendulum used is zero.