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A 0.34 kg particle moves in an xy plane according to x(t) = - 15 + 1t-3t3 and y(t) = 24 + 5 t - 10 t2, with x and y in meters and t in
seconds. At t = 1.2 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 (c) what is the angle of the particle's direction of travel?
(a) Number
Units
(b) Number
Units
(c) Number
Units

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