Lift is the force that counteracts gravity.
The upward force exerted on an object in a fluid is buoyancy.
The upward force is drag.
The upward force exerted by a liquid on a submerged object (or even on a floating object) is called buoyancy.
buoyancy is the upward force that water exerts on an object. :)
The upward force exerted on an object in a fluid is buoyancy.
The upward force exerted on an object in a fluid is buoyancy.
The upward force is drag.
The net force on the object is upward, so the object accelerates upward in the fluid.
The upward force exerted by a liquid on a submerged object (or even on a floating object) is called buoyancy.
buoyancy is the upward force that water exerts on an object. :)
The upward force exerted on an object in a fluid is buoyancy.
Buoyant force
buoyancy
The greater the pressure against the bottom of a submerged object produces an upward buoyant force
If the object is moving at a constant speed, the net force on it is 0. So the upward force would have to be equal to the downward force (namely the weight of the object).
Any upward force on an object can be less than, equal to, or greater than the force of gravity on that object. It all depends on the object's mass and distance from the center of the Earth.
Airplanes do not "defy gravity", any more than you do when you walk upstairs. In both cases, an upward force is generated that is greater than the downward force of gravity on an object. Since the net force on the object is then upward, the object accelerates upward.