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A football player runs from his own goal line to the opposing teams goal line, returning to his forty-yard line, allin 24.0 s. Calculate his average speed and the magnitude of his average velocihy, (Enter your answers in yards/s.) HINT (a) Calculate his average speed. yards/s (b) Calculate the magnitude of his average velocity yardss Need Help? adWach start together and race across a 56-km-wide lake and back. Boat A goes across at 66 km/h h and returns at 66 km/h. Boat B goes across at 33 km/h, and its crew, realizing how tar behind it is getting, returns at s km/h. Turnaround times are negligible, and the boat that completes the round trip first wins. (a) Which boat wins? (Or is it a tie?) boat A boat B Its a tie. By how much? km (b) What is the average velocity of the winning boat km/h Need Help? Read It Show A FYEREading.C... d.cxPersonal Re....ocxFYEREadingC... focox

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