In which of the following situations is an object not accelerating?
A. An airplane changes cou...
In which of the following situations is an object not accelerating?
A. An airplane changes course at a constant speed.
B. A water-skier gains speed in a straight line as she stands up.
C. A man walks in a straight line without changing his speed.
D. A ball slows down as it rolls up a hill.
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If state law mandates that elevators cannot accelerate more than 2.40 m/s2 or travel faster than 14.8 m/s , what is the minimum time in which an elevator can travel the 373 m from the ground floor to the observatory floor? ?
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