Theory of Intelligence
12TH•Physics•Simple Harmonic Motion•Question 4

Solution

A $80\,\mathrm{kg}$ body executes S.H.M with amplitude $30\,\mathrm{cm}$. The restoring force is $60\,\mathrm{N}$, when the displacement is $30\,\mathrm{cm}$. Find:

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Solution

  • Part (i): 1.3 s1.3\,\mathrm{s}
  • Part (ii): 3.0 m s−13.0\,\mathrm{m\,s^{-1}}, 1.4 m s−21.4\,\mathrm{m\,s^{-2}}, 7.6 J7.6\,\mathrm{J}, 1.44 J1.44\,\mathrm{J}

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