A 3.5 kg object moves as a function of time as x(t) = 4 cos[8t + π/4], where x is in meter and t in second. What is the

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answerhappygod
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A 3.5 kg object moves as a function of time as x(t) = 4 cos[8t + π/4], where x is in meter and t in second. What is the

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A 3.5 kg object moves as a function of time as x(t) = 4 cos[8t +π/4], where x is in meter and t in second. What is the kineticenergy of the object at t = 6 s? a. 1788 J b. 1780.8 J c. 1708.8 Jd. 1880.7 J
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