Under the influence of what internal forces are free oscillations performed in the spring and mathematical pendulums?

Free vibrations in a spring pendulum occur under the action of an elastic force. Free vibrations of a mathematical pendulum are performed by the action of the forces of gravity and elasticity of the thread.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.