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March 28, 2017

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a golfer rides in a golf cart at an average speed of 3.10 meters/sec for 28.0 sec. she then gets out of the cart and starts walking at an average speed of 1.30 m/s. for how long in seconds must she walk if her average speed for the entire trip, riding and walking is 1.8m/s?

  • college physics - ,

    Use the equation
    Average speed =
    (total distance travelled)/time

    1.8 m/s =
    [(3.1 * 28.0) + 1.30 t]/(t + 28)

    t is the time spent walking. Solve for it

  • college physics - ,

    0.81

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