When you riding in a commercial airplane it appears that the plane is at rest and the earth is moving underneath you?

No, it’s not valid. The earth is moving and so is the commercial airplane. An airplane can’t fly if it’s not moving, because of the earth’s gravity, it will probably fall down.

Why do planes stay up in the air when flying Newton’s laws?

The theory states that a wing keeps an airplane up by pushing the air down. Air has mass, and from Newton’s third law it follows that the wing’s downward push results in an equal and opposite push back upward, which is lift. The Newtonian account applies to wings of any shape, curved or flat, symmetrical or not.

Why does it feel like the plane is not moving?

The only acceleration you feel is due to gravity, which gives you a feeling of weight. Therefore, when you are flying straight and level, you also only feel the acceleration due to gravity, so you feel like you are standing still.

Do airplanes fly slow?

Answer: Airplanes are flying more efficiently which, in some cases, is slower. However, one of the most fuel efficient speeds, known as long-range cruise, is not being used very often. The operators are balancing speed vs. economy, using the flight management computers to pick the best speed.

Why do planes look like that?

The shape of an airplane’s wings is what makes it possible for the airplane to fly. Airplanes’ wings are curved on top and flatter on the bottom. That shape makes air flow over the top faster than under the bottom. As a result, less air pressure is on top of the wing.

How does an Aeroplane stay in the air?

A plane’s engines are designed to move it forward at high speed. That makes air flow rapidly over the wings, which throw the air down toward the ground, generating an upward force called lift that overcomes the plane’s weight and holds it in the sky.

How do Aeroplanes stay up in the air?

How do airplanes stay in the air? Four forces keep an airplane in the sky. They are lift, weight, thrust and drag. Lift pushes the airplane up.

Can planes go faster?

Commercial aircraft are typically powered by turbofan engines, which are most efficient at speeds of 400 to 620 miles per hour. Military aircraft can go much faster with turbojet engines—more than 1500 miles per hour in some cases—but that takes an incredible amount of fuel.