Q4: Consider the motion of the particle with r = 1, p = wt,0 =+cos 4wt where I is constant. By using the spherical coordinates, the speed as a function of time is 1²w²cos² (cos2w) + 1²w² = sin² 2wt B. √12w² cos² (cosw) - 1² w²sin² 4wt A. C. √1² w²cos² (cos4w) + 1²w² # * sin² 4wt D. 1²w²cos² (cos4w) + 1² w²™ sin² 4wt
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