Answer
There are four forces acting on the plane. The force of gravity points straight down. The normal force from the ground points straight up. The force of air resistance points opposite to the direction of motion. The thrust force from the engines points in the direction of the plane's motion. We can assume that the friction force between the tires and the ground is negligible.
Work Step by Step
There are four forces acting on the plane. The force of gravity points straight down. The normal force from the ground points straight up. The force of air resistance points opposite to the direction of motion. The thrust force from the engines points in the direction of the plane's motion. We can assume that the friction force between the tires and the ground is negligible.