When an airplane lands at the airport,in order to reduce the taxi distance,at the moment oftouching the ground,the tail of the airplane opens the deceleration umbrella to increase theresistance,so that the airplane quickly decelerates and stopsThere is an aircraft with a mass of 9000kg that can land at a horizontal speed of 700 km/h.After the test,after the reduction parachute is opened,the total resistance of the aircraft isproportional to the speed of the aircraft(proportional coefficient h=6.0×1°).From thelanding point,what is the longest distance of the aircraft?Note:kg stands for kg,km/h for km/h.