What is fundamental equation of S.H.M?

Q.  Which among the following is the fundamental equation of S.H.M.?
- Published on 10 Sep 15

a. x + (k / m) x =0
b. x + ω2x =0
c. x + (k/ m)2 x =0
d. x2 + ωx2 =0

ANSWER: x + ω2x =0

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