A jet of water moving with the velocity 12 m/sec impinges on a concave shaped vane to deflect the jet through 120 degrees when stationary. If the vane moves at 5 m/sec, determine the angle of jet so that there is no shock at the inlet. What is absolute velocity of water at the exit in magnitude and direction? Also find the work done per unit mass of water. Assume that the vane is smooth.