Science

Show that in a SIGN the phase difference between displacement and velocity is 90°and between displacement and acceleration is 180°

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asked by Riya
  1. that's SINE

    s = sin(x)
    v = ds/dx = cos(x) = sin(x+90°)
    a = dv/dt = -sin(x) = sin(x+180°)

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    posted by Steve

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