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Home > PC3 > Chapter 13 > Lesson 13.3.5 > Problem 13-156


Michelle starts walking at a rate of ft/s and steadily increases her speed so that she is walking at a rate of ft/s when seconds.

  1. Sketch a graph showing Michelle’s velocity as a function of time.

    Your curve should contain the points and .

  2. Write the equation of the curve in your graph from part (a).

  3. Show that Michelle walked feet in the first minute and feet in the first minutes.

    This is the area under the curve, which is a trapezoid.
    Be sure to convert minutes to seconds before making your calculations.

  4. How far did Michelle walk in seconds for ?