the water from a fire hose follows a path described by y=2.0+0.8-0.20x^2 (units are in meters). if vx is constant at 10.0 m/s, find the resultant velocity at the point (4.0, 2.0).

Find the magnitude of the velocity of the water at the point (4.0, 2.0).

The magnitude is approximately ?? m/s.