18. An airplane with a weight of 11000 N cruises at 180 km/h in level flight 2300 m above the ground. How much lift is acting on the plane? 19. How much net force is produced by a 30.0 N force and a 20.0 N force under the following situations:

11000 N

Explanation:

Without lift, the plane would have a downward acceleration of 9.8 m/s².

But since the plane is cruising at a constant velocity, the lift must counteract the gravitational force so that the net force is zero, which would be 11000 N.

answer: good job it's all correct !

explanation:

well, you would divide 135 by 33 to get your answer. then that is how many seconds it would take. boardman should fly about 132 m or 4.090909090909091 seconds.