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2. A car starts from rest and travels along a straight road (x(0) = v(0) = 0). Its engine provides a constant acceleration of

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2. A car starts from rest and travels along a straight road (x(0) = v(0) = 0). Its engine provides a constant acceleration of 20 ft/s. The combination of air and road resistance provides a deceleration of 0.16 ft/s for every foot per second of the car's velocity v. Find v when t = 12s and also the limiting velocity with units.

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