What conditions are required for simple harmonic motion?
Acceleration is directly proportional to the displacement from the position of equilibrium. Also the resultant force is therefore also directly proportional to this displacement, and the resultant force always acts towards this position of equilibrium.
WC
Related Physics A Level answers
All answers ▸What is the difference between free vibrations and forced vibrations?
What do I need to do for full marks on the question "describe an everyday circumstance where resonance occurs (4 marks)"?
What are the similarities and differences between an elastic and an inelastic collision?
A car moves from rest and accelerates uniformly at 4m/s/s, how far will it have traveled after 10 seconds?