why does the body acquire the terminal velocity?
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only spherical bodies acquire the terminal velocity in any fluid....the reason is that when the buoyant force is equal to mg...then the velocity becomes constant of the body in the liquid and it goes on falling deep.......
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As the object falls, the force of gravity
initially causes it to continuously speed up
as predicted by Isaac Newton. As it gets
faster and faster, the air drag force
increases until eventually, the air drag force
is exactly equal to the force of gravity, and
there is no net force acting on the object. If
these two forces are exactly balanced, the
object will no longer speed up or slow down
but will continue falling at a constant
velocity, called the terminal velocity.
As the object falls, the force of gravity
initially causes it to continuously speed up
as predicted by Isaac Newton. As it gets
faster and faster, the air drag force
increases until eventually, the air drag force
is exactly equal to the force of gravity, and
there is no net force acting on the object. If
these two forces are exactly balanced, the
object will no longer speed up or slow down
but will continue falling at a constant
velocity, called the terminal velocity.
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