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2. A car moves along a straight line, so that its position (dis- tance from some starting point) varies with time as de- scribed by

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2. A car moves along a straight line, so that its position (dis- tance from some starting point) varies with time as de- scribed by the graph shown here. a. Does the car ever go backward? Explain. b. Is the instantaneous velocity at point A greater or less than that at point B? Explain. da C B A Q22 Diagram

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