A helicopter starts from rest at point A and travels along the straight-line path with a constant acceleration a. If the speed v = 32 m/s when the altitude of the helicopter is h = 38 m, determine the values of r, r, 0, and 0 as measured by the tracking device at O. At this instant, 0 = 43°, and the distance d = 182 m. Neglect the small height of the tracking device above the ground. Answers: j= 0 = i i i 0 = i Ө d m/s m/s² rad/s rad/s² A

Your answer is partially correct. Airplane A is flying horizontally with a speed of 218 km/h which is increasing at the rate of 4.8 km/h each second and is towing the glider B, which is gaining altitude. If the tow cable has a length r = 80 m, and the cable is unreeling at the constant rate r = 1.8 m/s while 0 = 19° is kept constant, determine the magnitudes of the velocity v and acceleration a of the glider. VA A Answers: V = a = i 58.8 1.33 km/h m/s²

Car A is traveling at a location where the speed limit is 100 km/h. The police officer in car Pobserves this speed via radar. The driver of car A is traveling at VA = 138 km/h as it passes P, but over the next 4.3 seconds, the car uniformly decelerates to the speed limit of 100 km/h, and after that the speed limit is maintained. At the moment when A passes P, the police car begins to accelerate at the constant rate of 5.0 m/s² until a speed of 167 km/h is achieved, and that speed is then maintained. Determine the distances required for the police officer to overtake car A. Answer: s= i m

Car A is traveling at the constant speed of 45 km/h as it rounds the circular curve of radius r = 380 m and at the instant represented is at the position 0 = 40°. Car B is traveling at the constant speed of 54 km/h and passes the center of the circle at this same instant. Car A is located with respect to car B by polar coordinates r and with the pole moving with B. For this instant determine VA/B and the values of r and as measured by an observer in car B. Answers: VA/B = r = 0 = i i 8 m/s m/s rad/s B