SHMHard
Question
In SHM particle oscillates with frequency υ then find the frequency of oscillation of its kinetic energy.
Options
A.υ
B.υ/2
C.2υ
D.zero
Solution
X = A sin2πυt,
K.E. =
K(A2 − x2) = 
(A2 − A2 sin2 2πυt) = 
A2(1 + cos4πυt) = 
A2(1 + cos4πυt)
Hence, the frequency of K.E. is 2υ.
K.E. =
K(A2 − x2) = (A2 − A2 sin2 2πυt) = A2(1 + cos4πυt) = A2(1 + cos4πυt)Hence, the frequency of K.E. is 2υ.
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