An object moving along a straight line is decelerating. Which one of the following statements concerning the object's acceleration is necessarily true? 1. The value of the acceleration is positive. 2. The direction of the acceleration is in the same direction as the displacement. 3. An object that is decelerating has a negative acceleration. 4. The direction of the acceleration is in the direction opposite to that of the velocity. 5. The acceleration changes as the object moves along the line.
An object moving along a straight line is decelerating. Which one of the following statements concerning the object's acceleration is necessarily true? 1. The value of the acceleration is positive. 2. The direction of the acceleration is in the same direction as the displacement. 3. An object that is decelerating has a negative acceleration. 4. The direction of the acceleration is in the direction opposite to that of the velocity. 5. The acceleration changes as the object moves along the line.
College Physics
1st Edition
ISBN:9781938168000
Author:Paul Peter Urone, Roger Hinrichs
Publisher:Paul Peter Urone, Roger Hinrichs
Chapter2: Kinematics
Section: Chapter Questions
Problem 29CQ: (a) Sketch a graph of acceleration versus time corresponding to the graph of velocity versus time...
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