Which of these systems are oscillatory and which are not. a) A ball on a horizontal surface

Which of these systems are oscillatory and which are not. a) A ball on a horizontal surface b) A ball on the bottom of a bowl c) A ball on a convex surface d) A thin branch of a tree e) A piston in a cylinder f) A spring pendulum

An oscillatory system is a physical system in which free oscillations can exist.
B, D, E – vibrational
A, B, D – respectively no



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