Question

Какие силы действуют на самолет при полёте

Answer 1

Сила тяжести , сила трения , сила притяжения и центробежная сила

Answer 2

Сила тяжести, которую он преодолевает.
Сила трения, тяги, центробежная сила и сила притяжения.

Answer 3

Forces Acting on an Airplane during Flight

When an airplane is in flight, several forces act upon it. These forces are essential for the airplane to maintain its stability and control. Let's discuss the main forces that act on an airplane during flight:

1. Lift: Lift is the upward force that opposes the weight of the airplane and keeps it airborne. It is generated by the wings as air flows over them. The shape of the wings, known as airfoils, creates a pressure difference between the upper and lower surfaces, resulting in lift. Lift is essential for the airplane to overcome gravity and stay in the air.

2. Weight: Weight is the force exerted by gravity on the airplane. It acts vertically downward through the center of gravity of the aircraft. The weight of the airplane is determined by its mass and the acceleration due to gravity. The lift force must be equal to or greater than the weight for the airplane to maintain level flight.

3. Thrust: Thrust is the force that propels the airplane forward. It is generated by the engines or propulsion system of the aircraft. The engines produce thrust by expelling a high-speed jet of gases in the opposite direction, according to Newton's third law of motion. Thrust is necessary to overcome drag and maintain or change the airplane's speed and direction.

4. Drag: Drag is the resistance encountered by the airplane as it moves through the air. It acts in the opposite direction to the motion of the aircraft. Drag is caused by various factors, including air friction, pressure differences, and the shape of the airplane. It opposes the forward motion of the aircraft and must be overcome by thrust to maintain or increase speed.

These four forces—lift, weight, thrust, and drag—interact with each other to determine the performance and behavior of an airplane during flight. The pilot uses control surfaces, such as ailerons, elevators, and rudders, to manipulate these forces and control the airplane's attitude, altitude, and direction.

Please note that the information provided above is a general overview of the forces acting on an airplane during flight. For more specific details and technical information, it is recommended to refer to reliable aviation sources