A test vehicle designed for impact studies has a mass m = 1.4 Mg and is accelerated from...

A test vehicle designed for impact studies has a mass m = 1.4 Mg and is accelerated from rest by the impingement of a high-velocity water jet upon its curved deflector attached to the rear of the vehicle. The jet of fresh water is produced by the air-operated piston and issues from the 140-mm-diameter nozzle with a velocity v = 150 m/s. Frictional resistance of the vehicle, treated as a particle, amounts to 10 percent of its weight. Determine the velocity u of the vehicle 3 seconds after release from rest. (Hint: Adapt the results of Sample Problem 4/6.)