Question

Four basic forces act on an airplane while in flight: lift, weight, drag, and thrust. These four forces and their directions are indicated below.

Answer 1

Complete question is;

Four basic forces act on an airplane while in flight: lift, weight, drag, and thrust. These four forces and their directions are indicated in the image attached.

If the thrust acting on an airplane is greater than the drag, then

A. The airplane will accelerate backward.

B. The lift will be greater then the weight.

C. The airplane will accelerate forward.

D. The weight will be greater than the lift

Answer:

C. The airplane will accelerate forward.

Explanation:

From the image attached, we can see that the thrust is the forward force responsible for pushing the plane forward while the drag is the one resisting this forward motion.

Thus, if the thrust is greater than the drag, it means the plane will accelerate forwards.

Thus, option C is correct.