A plane weighing 220kN (25 tons) lands on an aircraft carrier. The plane is moving horizontally at 67 m/s (150 mi/h) when its tail hook grabs hold of the arresting cables. The cables bring the plane to a stop in a distance of 84 m.
a) How much work is done on the plane by the arresting cables?
b) What is the force (assumed constant) exerted on the plane with the cables?