Question

A passenger with a mass of 140,000 kg flies at a constant velocity of 220 m/s at an altitude of 11,000 meters. What net force acts on the plane?

Answer 1

The force that is acting upon the plane is simply force due to gravity. To solve, we use Newtons first law:

F = m a

 

where m is mass of the object, a is acceleration due to gravity = 9.8 m/s^2

 

Calculating for F:

F = 140,000 kg * 9.8 m/s^2

F = 1,372,000 N