A 0.39 kg particle moves in an xy plane according to x(t) = - 14 + 1 t - 3 t3 and y(t) = 19 + 5 t - 9 t2, with x and y i

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answerhappygod
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A 0.39 kg particle moves in an xy plane according to x(t) = - 14 + 1 t - 3 t3 and y(t) = 19 + 5 t - 9 t2, with x and y i

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A 0.39 kg particle moves in an xy plane according tox(t) = - 14 + 1 t - 3 t3 andy(t) = 19 + 5 t - 9 t2, withx and y in meters and t in seconds. Att = 1.0 s, what are (a) the magnitude and(b) the angle (within (-180°, 180°] intervalrelative to the positive direction of the x axis) of thenet force on the particle, and (c) what is theangle of the particle's direction of travel?
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