The acceleration of a vehicle can be expressed as: \frac{d u}{d t}=3.6-0.06 u If the vehicle speed, u, is 30 ft/sec at time To, Determine: (a) Distance traveled when the vehicle has accelerated to 45 ft/sec. (b) Time for vehicle to attain the speed of 45 ft/sec. (c) Acceleration after 4 seconds.

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