If the upward force acting on an object is greater than the downward force (its weight or force of gravity), the object will experience a net upward force causing it to accelerate in the upward direction. This could lead to the object moving upwards, overcoming the force of gravity pulling it downward.
Down ward force is greater than upward force because everything on earth, obeys the laws of gravity, and for a rocket to take off from earth it needs more energy in other to fight the earths gravitational force but despite fighting the gravitational force it still doesnt take off with a full speed, But for a body of mass to fall from the atmosphere its falls with a great speed due to the force of the earths gravity.
When something is more dense than water, it will sink. This is because the upward buoyant force exerted by the water is not enough to overpower the gravitational force pulling the object downward.
Yes, it is easier to lift an object in water than in air due to buoyancy. The upward force exerted by water on an object is greater than the downward force of gravity acting on the object, making it feel lighter in water. This is because water has a higher density than air, resulting in more buoyant force.
Additional forces may have any magnitude and direction. In the special case that the forces are in equilibrium (the object does not accelerate), a second force (or the sum of all the other forces) would have to be 500N upward.
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.
Down ward force is greater than upward force because everything on earth, obeys the laws of gravity, and for a rocket to take off from earth it needs more energy in other to fight the earths gravitational force but despite fighting the gravitational force it still doesnt take off with a full speed, But for a body of mass to fall from the atmosphere its falls with a great speed due to the force of the earths gravity.
The net force on the object is upward, so the object accelerates upward in the fluid.
When something is more dense than water, it will sink. This is because the upward buoyant force exerted by the water is not enough to overpower the gravitational force pulling the object downward.
Yes, it is easier to lift an object in water than in air due to buoyancy. The upward force exerted by water on an object is greater than the downward force of gravity acting on the object, making it feel lighter in water. This is because water has a higher density than air, resulting in more buoyant force.
Additional forces may have any magnitude and direction. In the special case that the forces are in equilibrium (the object does not accelerate), a second force (or the sum of all the other forces) would have to be 500N upward.
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.
ok so when the object hits the water, the water pushes up with the same amount of force (boyancy ) but if the object has a greater density than the water then the object has more force pushing down on the water and then it sinks. more dense=sink, less dense =float
The upward force would have to overcome gravity, so the force should be F > -mg. Since the upward force and gravity work in opposite direction you can disregard the mass of the object (they cancel: F(gravity) = F(upward) => mg = -m(g+x)) . Consequently the object's mass is irrelevant.
Objects float or sink on water based on their density compared to the density of water. If an object is less dense than water, it will float because the upward buoyant force is greater than the object's weight. If an object is more dense than water, it will sink because the downward force of gravity is greater than the upward buoyant force.
More weight requires more force to overcome the force of gravity acting on the object. The force of gravity is directly proportional to an object's mass, meaning heavier objects experience a greater gravitational force pulling them downward. To lift or move heavier objects, more force must be applied to counteract this gravitational force.
The buoyant force is directly proportional to the volume of the object displaced in a fluid. This is because a larger volume displaces more fluid, creating a greater upward force (buoyant force) on the object according to Archimedes' principle.
If the object is floating, then the buoyant force is equal to the object's weight.Read more: An_object_floats_in_a_fluid_What_can_you_say_about_the_buoyant_force_on_the_object