Physics
posted by John .
A plane weighing 220 kN (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 by the cables? (Both answers will be underestimates, since the plane lands with the engine full throttle forward; in case the tail hook fails to grab hold of the cables, the pilot must be ready for immediate takeoff.)

Plane's mass M = (220*10^3 N)/g
= 22,450 kg
Initial kinetic energy = (1/2) M V^2
= 5.04*10^7 J
(a) Work done by cables = (initial KE)
(b) Divide work by distance the plane moves while decelerating. That will be the average force exerted
Respond to this Question
Similar Questions

Physics
A jet catapult on an aircraft carrier accelerates a 200kg plane uniformly from rest to a launch speed of 320km/h in 2.0s. What is the magnitude of the net force on the plane? 
Physics
A F14 (mass 2 tonne) aircraft lands on an aircraft carrier. It must reduce its velocity from 130kmh to rest. If the grappler hooks can exert 75 000N of tension, what time will it take to bring the plane to a stop? 
physics
A steam catapult launches a jet aircraft (from rest) from the aircraft carrier John C. Stennis, giving it a speed of 160 mi/h in 2.40 s. Find the average acceleration of the plane. Assuming that the acceleration is constant, find the … 
Velocity and Displacement
A plane is sitting on a runway, awaiting takeoff. On an adjacent parallel runway, another plane lands and passes the stationary plane at a speed of 47 m/s. The arriving plane has a length of 32 m. By looking out the window (very narrow), … 
Physics
An F18 with a weight of 22500 lb lands on a carrier with a speed of 120mph. If the runout of the arresting cable is 160ft, what is the plane's acceleration in feet per second squared? 
Physics
A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 205 mi/h in 3.00 s. (a) Find the average acceleration of the plane. (b) Assuming the acceleration is constant, find the distance … 
Physics
A loaded penguin sled weighing 60 N rests on a plane inclined at 20° to the horizontal. Between the sled and the plane the coefficient of static friction is 0.27, and the coefficient of kinetic friction is 0.13. (a) What is the minimum … 
Physics
A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 190 mi/h in 2.70 s. a.) Find the average acceleration of the plane. b.) Assuming the acceleration is constant, find the distance … 
physics
When a jet lands on an aircraft carrier, a hook on the tail of the plane grabs a wire that quickly brings the plane to a halt before it overshoots the deck. In a typical landing, a jet touching down at 240 km/h is stopped in a distance … 
physics
A steam catapult launches a jet aircraft from the aircraft carrier John C. Stennis, giving it a speed of 205 mi/h in 2.70 s. (a) Find the average acceleration of the plane. (b) Assuming the acceleration is constant, find the distance …