Question

An airplane is being pushed West by its engines with a force of 350 N as it starts to take off the runway at the Atlanta airport. As it moves, 100 N of friction force from the runway and 100 N of air resistance are pushing the airplane toward the East. What are the net forces acting on the plane and which direction will it move?
Group of answer choices:

The airplane will move to the West with a net force of 250 N


The airplane is experiencing balanced forces so it will stop moving.


The airplane will continue to move toward the West with a net force of 150 N.


The airplane will move to the East with a net force of 250 N.

Answer 1

Answer:

option C

Explanation:

given,

Force by the engine on plane in West direction = 350 N

Frictional force on the runway = 100 N in east

force exerted by the wind = 100 N in east

net force and direction = ?

consider west to be positive and east be negative.

when airplane will be moving there will be frictional as well as wind resistance will be acting in opposite direction of airplane

Net force = 350 N - 100 N - 100 N

                 = 150 N

as our answer comes out to be positive so the airplane will be moving in West

hence, the correct answer is option C