Simple Harmonic Motion can be defined as the motion of an object where its acceleration is directly proportional to its distance from a fixed point along a path. The acceleration is said to always be directed towards the fixed point. This fixed point is known as the equilibrium position; this is because it is where the object that is swinging freely would come to rest given that it has lost all its energy.
The diagram below shows a pendulum in simple harmonic motion:
Pendulum in S.H.M |
Where:
P is the equilibrium position (where the body would come to rest)
PQ & PR gives the amplitude position which is the greatest displacement from equilibrium position.
X is the position from the equilibrium position.
Formulas involved in simple harmonic motion:
S.H.M formulas |
Spring in S.H.M |
1 Response to Understanding Simple Harmonic Motion
Awesome explanation and graphics. Congratulations!!!
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