Answer to Question #141 in Mechanics | Relativity for Kaiya Smith

Question

To take a swing with a sitting person at a large angle, it is necessary to exert considerable force. Why is it possible to rock the swing to the same deflection angle by a much smaller effort?

Answer 1

During the rocking the swings forced resonant vibrations take place, as well as resonance between the driving force (a person who swings) and natural frequency swings, that is why the effort required is much smaller.