A jet of water having a velocity of 15 m/s strikes a curved vane which is moving with a velocity of 15 m/s. The vane is symmetrical and it so shaped that the jet is deflected through 120̊. Find the angle of the jet at inlet of the vane so that there is no shock. What is the absolute velocity of the jet at an outlet in magnitude and direction and the work done per unit weight of water? Assume the vane to be smooth.