1.A physics professor leaves her house and walks along the sidewalk toward the campus. After 5 min it starts to rain and she returns home. Her distance from the house as a function of time is shown in the figure. At which of the labeled points is her velocitya) zero? ____________________ b) constant and positive? ____________________ c) constant and negative? ____________________
a. At point IV, velocity is zero because slope is zero at this point.
b. At point I, velocity is positive and constant.
c. At point V, slope is negative and constant.
d. At point II, slope is positive but decreasing.
e. At point III, slope is positive but decreasing.
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