What is the angle of the particles direction of travel

Reference no: EM13528005

A 0.43 kg particle moves in an xy plane according to x(t) = - 13 + 4 t - 3 t3 and y(t) = 26 + 9 t - 7 t2, with x and y in meters and t in seconds. At t = 0.7 s, what are

(a) the magnitude and

(b) the angle (within (-180°, 180°] interval relative to the positive direction of the x axis) of the net force on the particle, and

Reference no: EM13528005

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