For example we can estimate the depth of a vertical mine shaft by dropping a rock into it and listening for the rock to hit the bottom.
Why do some objects like feathers fall slower than marbles.
The air resistance on a moving obj.
But there is another point.
Falling objects form an interesting class of motion problems.
This air causes friction with objects as they fall through it called air resistance which can.
Well it s because the air offers much greater resistance to the falling motion of the feather than it does to the brick.
Air resistance on earth we have plenty of air to breathe.
So why do feathers usually fall slowly.
Things like dust can stay floating for a long time if the particles are small enough so if you re on earth where objects are falling through air a heavier object may fall faster than a similarly sized lighter object but it usually won t be noticeable to us because the effect is often quite small for most things we deal with in practice.
In order to see the true nature of gravity effecting the feathers you need to remove all the air in the room.
Terminal velocity is defined to be the velocity of a falling object when it s weight is completely balanced by the upward air resistance.
So why do some objects fall faster than others.
It is of course the force of gravity that causes objects to fall.
You may wonder then why feathers float gently in the breeze instead of falling to the ground quickly like a brick does.
By applying the kinematics developed so far to falling objects we can examine some interesting situations and learn much about gravity in the process.
Do objects float better in salt water than in fresh water.
Physical science why do some objects fall faster than others.
A feather reaches terminal velocity a lot faster than say a cannon ball.
The principle of free fall holds true when objects face no air resistance in that case the ratio of force.
One object always exerts a force of attraction on.
Though some objects like feathers seem to fall slower because of air resistance.
Gravity is a major player in the study of physical science.
Yes your understanding about free fall is correct however there is one important factor that you seem to have missed.