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You move!!!
* * * * *
No, you accelerate!
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∙ 11y ago
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What causes a force to produce motion?
To move an object forward from rest the thrust of forward force must be greater than the drag acting in the opposite direction. In order to keep moving at a constant velocity the forward force must equal the drag.
What makes smaller airplanes go faster than bigger airplanes?
There are four factors that are exerted on airplanes. Thrust, Drag, Gravity and lift. Lift must be higher then gravity to make a plane go up. Thrust be be stronger then drag to make a plane go faster. As a plane becomes larger, more drag is added to the plane. This requires more thrust to maintain the same speed. So, as a plane gets larger the amount of power an engine must produce goes up drastically. Small planes with the same horsepower or thrust ratings will alays be able to go faster.
What happens if the Weight greater than lift on a plane?
(Airplane is descending)
What happens to the buoyant force is greater than its weight?
If the buoyant force is greater than the weight of an object than the object will accelerate (assuming there are no other forces acting on the object)
What happens when an airplane takes off?
There are four basic forces acting on the airplane. First is GRAVITY, which pulls the airplane down. The second is THRUST, the power of the plane's engines; this can be the force of the propeller, or the jet engine. The third force is DRAG; as the airplane moves through the air, the air DRAGS the airplane back to slow it down. THRUST counteracts DRAG. The fourth force is LIFT. The shape of the airplane's wing forces the air to travel a little faster over the top of the wing than over the bottom of the wing. The air moving sideways along the surface of the wing causes lower pressure, so the faster air generates lower air pressure on the top of the wing, and higher pressure on the bottom. The higher pressure on the bottom provides LIFT, which pushes the airplane up. So the higher the THRUST, the greater the LIFT, so as the pilot spins up the engines, the plane goes faster and faster (opposing the DRAG) until the LIFT exceeds the force of GRAVITY. And the airplane flies. In landing, the pilot throttles back the engine, decreasing the THRUST, which causes lower LIFT, and GRAVITY pulls the airplane down. It's a delicate balance; we want to keep all these forces in balance until the wheels are on the ground, at which time the pilot cuts the engines and the THRUST, and allows DRAG and GRAVITY to take over.
What happens if thrust is greater than drag?
The car (or plane/whatever else it is) accelerates. This means that it gains speed
Is thrust greater than drag?
yes
When is thrust greater than drag?
The object accelerates.
What happens to the four forces in order to make an airplane fly?
The four basic forces acting on an aircraft are Lift, Weight (Gravity), Thrust, and Drag. In order for an aircraft to ascend, Lift must be greater than Weight, and Thrust must be greater than Drag.
What happens when a flying airplane has less thrust than drag?
It will stall and begin to lose altitude.
How come an airplane floats in air?
Essentially there are 4 aerodynamic forces that act on an airplane in flight; these are lift, drag, thrust and gravity (or weight).In simple terms, drag is the resistance of air (the backward force), thrust is the power of the airplane's engine (the forward force), lift is the upward force and gravity is the downward force. So for airplanes to fly, the thrust must be greater than the drag and the lift must be greater than the gravity (so as you can see, drag opposes thrust and lift opposes gravity).This is certainly the case when an airplane takes off or climbs. However, when it is in straight and level flight the opposing forces of lift and gravity are balanced. During a descent, gravity exceeds lift and to slow an airplane drag has to overcome thrust.
What causes a force to produce motion?
To move an object forward from rest the thrust of forward force must be greater than the drag acting in the opposite direction. In order to keep moving at a constant velocity the forward force must equal the drag.
What are the four forces on an aircraft and how do they act on an aircraft?
For an airplane to fly, it must always engage in a tug of war between the opposing forces of lift versus weight and thrust versus drag. For a moment, think of an airplane moving from right to left and the flow of air moving from left to right. The weight or force due to gravity pulls down on the plane opposing the lift created by air flowing over the wing. Thrust is generated by the propellor and opposes drag caused by air resistance to the airplane. During take off, thrust must be greater than drag and lift must be greater than weight so that the airplane can become airborne. For landing thrust must be less than drag, and lift must be less than weight. Hope this helps
What must airplanes and rockets do to fly through the air?
They must have sufficient thrust from their engines and lift from their wings to overcome their weight and the aerodynamic drag forces. Most rockets do not have sufficient wings to lift them but their engines provide a thrust force that is greater than their weight and it keeps pushing them vertically in the air.
How is thrust different from force?
there is not much difference between thrust anf force...its just that thrust is the force acting perpendiclular to the surface thrust will always be either equal or greater than force.
What is required for a rocket to lift off into space a. thrust that is greater than Earth and gravity c. very little air resistance b. mass that is greater than Earth and d. more velocity than?
Thrust that is greater than Earth's gravity, and it must be sustained over a sufficiently long time. Alternately, the initial speed must be greater than the escape velocity.
What is required for a rocket to lift off into space?
thrust that is greater than earth's gravity
