Question

A jet weighing 22 tons must be moving at 210 mi/h to take off. What is the minimum thrust (in pounds) that the jet's exhaust must exert on its engines if the plane is to successfully take off from a 420 foot airstrip? [1 m/s=2.24 mi/h, 1 mi=5280 ft, 1 ton=2000 lbs]

Answer 1