...enemy ship has maneuvered t? An enemy ship is on the east side of a mountain island as shown in the figure. The enemy ship has maneuvered to within 2500 m of the 1800-m-high mountain peak and can shoot projectiles with an initial speed of 250 m/s. If the western shoreline is horizontally 300m from the peak, what are the distances from the western shore at which a ship can be safe from the bombardment of the enemy ship? What is the launch angle for this minimum approach? How high would the initial projectile speed need to be so that no ship can safely hide behind the mountain range?

I know the range is less than 270 meters, or greater than 3,480.

but I dont know the angle and speed.