Задача 40381.

Equation CW spring pendulum mass of 0.1 kg is: x = 5 cos (t + n / 6), see Find the period of oscillation and kinetic energy through time n / 6.. Write a differential equation of oscillations of a pendulum.

Detailed solution with a short recording conditions, laws and formulas used in the decision, the withdrawal of the calculation formula and the answer.
If you have any questions about the decision to write. I try to help.