The acceleration of a vehicle can be expressed as follows. du - 3.6 0.06u dt The vehicle speed, u, is 30 ft/sec at time To (a) Determine the distance (in ft) traveled when the vehicle has accelerated to 35 ft/sec. ft (b) Determine the time (in s) for the vehicle to attain the speed of 35 ft/sec. (Enter the time after To.) S (c) Determine the acceleration (in ft/s) after 6 sec. (Enter the magnitude.)