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A spaceship ferrying workers to Moon Base 1 takes a straight-line path from the earth to the moos, distance of 384000 km

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A spaceship ferrying workers to Moon Base 1 takes a straight-line path from the earth to the moos, distance of 384000 km. Suppose it accelerates at an acceleration 20.0 m/s2 for the first time interval 15.1 min of the trip, then travels at constant speed until the last time interval 15.1 min , when it accelerates at — 20.0 m s2 , just coming to rest as it reaches the moon. (a) What is the maximum speed attained? (b) What fraction of the total distance is traveled at constant speed'?