Practice portal › Oscillations › Energy in SHM
Asked in JEE Main 2006 · Kinetic, potential and total energy
K/E=1-(x²)/(A²)=0.75 gives x=A/2.
Starting from the origin, x=A sin ω t with ω=π rad s⁻¹, so sin π t=1/2, π t=π/6 and t=1/6 s.
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