The takeoff speed of a military aircraft carrier is approximately 215 mi/hr relative to the air. They acquire this speed through a combination of a catapult system present on the
aircraft carrier and the aircraft's jet propulsion system. A common strategy is to head the
carrier and the plane into the wind. If the plane is taking off from an aircraft carrier
which is moving at 50 mi/hr into a 30 mi/hr headwind, then what speed relative to the
deck of the aircraft carrier must it obtain to takeoff?