Using the minimum velocity, at what height, h1 (in ft), should the fireman hold the hose so that the water will hit the wall at 10 ft from the ground?

For the figure shown, the firefighter projects water from the hose at an angle of 50 degrees at a height of 3 ft from the ground at a horizontal distance, d, away from the wall. At a safe maximum distance, d, the projected water hits the wall at a height of 25 ft from the ground as shown in the figure. The speed of the water that the hose nozzle is 50 ft/s. (25 Points) VC C B