Homework Answers
east disp: x = 77km/h(31 + 22*sin54º - 41)h/60 = 10.00 km
north disp: y = 77km/h(0 + 22cos54º + 0)h/60 = 16.60 km
displacement s = √(x² + y²) = 19.38 km
total time t = (31 + 22 + 41)/60 h = 1.57 h
(a) Vavg = s / t = 12.37 km/h
(b) Θ = arctan(16/10) = 58º N of E
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