Oscillation



  • 0_1542534878274_IMG_20181118_152426.jpg
    Answer is 1



  • @urvashi
    Consider a general SHM Equation,
    x=Acosωtx=Acos\omega tx=Acosωt
    At extreme position, x=Ax=Ax=A
    =>A=AcosωtA=Acos\omega tA=Acosωt
    If particle starts at t=0,
    then it starts from AAA
    When x=A2x=\frac{A}{2}x=2A
    cosωt=12cos\omega t=\frac{1}{2}cosωt=21
    =>ωt=π3\omega t=\frac{\pi}{3}ωt=3π
    =>t=π3ωt=\frac{\pi}{3\omega}t=3ωπ
    ω=2πT\omega=\frac{2\pi}{T}ω=T2π
    =>t=T6t=\frac{T}{6}t=6T


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