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March 27, 2017

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a plane flys 350 km south along a straight path with an average velocity of 125 km/h to the south. the plane has a 30 minute layover and then travels 220 km south with an average velocity of 115 km/h to the south. what is the average velocity of the trip

  • physics - ,

    avg velocity=displacement/time

    displacement=350S+220S
    time=350/125+.5+220/115

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