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 Q4. A particle of mass m executes simple harmonic motion in a straight line with amplitude A and frequency f. Which one of the following expressions represents the total energy of the particle?
Total energy is composed of kinetic energy and potential energy. When PE is zero all of the energy is KE and vice versa. Therefore the maximum velocity can be used to work out the energy E = 1/2 mv2 = 1/2 m (2 = 2m |
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2 mfA2
2 mf2A2
fA)2
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