What are the tangential force and axial thrust per kg/s of steam, respectively?

Question

Velocity diagram shown above is for an impulse turbine stage. What are the tangential force and axial thrust per kg/s of steam, respectively?

         (a) 450 N, 8 N                (b) 560 N, 8 N

         (c) 680 N, 4 N                (d) 910 N, 4 N