The circular motion of a particle with constant speed is:

Question

G1 Physics · Accepted Answer

Step 1: Uniform circular motion repeats after a complete revolution, hence is periodic. Step 2: However its displacement is not constrained to a straight line and its acceleration is directed towards the circle centre. Step 3: The entire two-dimensional circular motion is not SHM; only its projection on a diameter is SHM. Final answer: (A) periodic but not simple harmonic.