What forces were acting on the objects dropped in the air? What force was acting on the objects dropped in the vacuum?

Question

anonymous · Answer

this is the complete question

shane_b · Answer

Objects dropped in air experience drag forces and gravity.  In a vacuum, there are no drag forces.

shane_b · Answer

So there's just the force of gravity in a vacuum..

anonymous · Answer

in simple words there would be no friction offered to the object dropped in vacuum.
thus no frictional force in second case. gravitational force will be still applied in both cases

kainui · Answer

Watch this, you'll be glad you did! http://www.youtube.com/watch?v=5C5_dOEyAfk

anonymous · Answer

like, :) was good to see it practically thanx. . .

unklerhaukus · Answer

in the air there is linear and quadratic drag forces, opposed to the motion

anonymous · Answer

@Kainui great to actually see it! thanks for sharing!