Resonant Frequency?

Question

What is the Resonant frequency of a swing whose length is 3.50m?

Answer 1

f = (1/2pi)(sqrt(g/L))

L is the length of the rope.

= 1/2pi (sqrt(9.8/3.5))

= 1/2pi (sqrt(2.8))

= (1/2pi) (1.673)

= (0.160)(1.673)

= 0.266 beat/sec

that's it!

Answer 2

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