How is lift force proportional to speed up?

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Lift force is directly related to the speed of an object moving upwards, as greater lift results in increased upward velocity. To calculate speed, one must determine the net force acting on the object using the formula: Net Force = Lift - Weight. If lift equals weight, the object maintains a constant vertical velocity, indicating zero acceleration. Lift is defined as the force acting perpendicular to the direction of travel, primarily affecting direction rather than speed. Understanding the relationship between thrust, lift, and weight is crucial for calculating vertical motion in aircraft.
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i know that if i have a greater lift force, there will be a greater speed upwards, but i don't know to calculate a speed of something upwards. is this even possible to calculate? if it's not, can you give a calculation example??
 
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Work out the net force acting on the object in the vertical direction..

Net Force = Lift - Weight

Then apply Newton..

Net Force = mass * acceleration

If lift = weight then there is no net force acting on the object so it's vertical velocity will be constant (eg acceleration = 0).
 
is weight the atmospheric pressure or how much the body weighs? just want to make sure.
 
By definition, lift is perpendicular to the direction of travel (with respect to the air), so it only changes direction, not speed. If a plane is in a steady vertical climb at some constant angle θ above horitzontal, with a vertical speed component of speed x sin(θ), then there needs to be enough thrust and lift so that the vertical components of thrust and lift equal the weight of the aircraft:

thrust x sin(θ) + lift x cos(θ) = weight.
 
okay then, thank you all!
 
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