A 0.34 kg particle moves in an xy plane according to x(t) = - 15 + 1t-3t3 and y(t) = 24 +5t- 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

A 0.34 kg particle moves in an xy plane according to x(t) = - 15 + 1t-3t3 and y(t) = 24 +5t- 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