A helicopter is traveling at 40 m/s at a constant altitude of 200 m over a level field. If a wheel falls off the helicopter, with what speed will it

A helicopter is traveling at 40 m/s at a constant altitude of 200 m over a level field. If a wheel falls off the helicopter, with what speed will it hit the ground? (g = 9.8 m/s2 and air resistance negligible)