A girl operates a radio-controlled model car in a vacant parking lot. The girl drives a car in a straight line so that the x coordinate is defined by the relation is given by x(t) = 0.5t3 – 3t2 + 3t +2 where x is in meters and t in seconds. When is the instantaneous acceleration zero?

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter2: Motion In One Dimension
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Problem 48P: A commuter train travels between two downtown stations. Because the stations are only 1.00 km apart,...
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A girl operates a radio-controlled model car in a vacant parking lot. The girl drives a car in a straight line so that the x coordinate is defined by the relation is given by x(t) = 0.5t3 – 3t2 + 3t +2 where x is in meters and t in seconds.

  1. When is the instantaneous acceleration zero?
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