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Cars A and B are traveling around the circular race track. At the instant shown, A has a speed of 81 ft/s and is increasing its speed at the rate of 15 ft/s, whereas B has a speed of 105 ft/s and is decreasing its speed at 25 ft/s. (Figure 1) Part A Determine the relative velocity of car A with respect to car B at this instant. Express your answer to three significant figures and include the appropriate units. OCH HÅR O O ? Figure < 1 of 1 VA/B = 53.4 Submit Previous Answers Request Answer fra = 300 ft * Incorrect; Try Again; 5 attempts remaining trg 250 ft Part B Determine the angle of UAB (counterclockwise from the negative x axis). Express your answer to three sianificant fiaures and include the appropriate units.

Part B Determine the angle of VA/B (counterclockwise from the negative 3 axis). Express your answer to three significant figures and include the appropriate units. CHA MO O ? 0,= Value Units Submit Request Answer Part C Determine the relative acceleration of car A with respect to car B at this instant. Express your answer to three significant figures and include the appropriate units. Value Units

Part D Determine the angle of a A/B (counterclockwise from the positive x axis). Express your answer to three significant figures and include the appropriate units. ? CH PÅ 0x = Value O Units Submit Request Answer Provide Feedback