Example : A stone falls faster than a piece of paper. In my book it says that the air resistance affects the acceleration of the paper more than it affects the acceleration of the stone. But why does the air resistance affect the acceleration of the paper more than that of the stone?
Most Helpful Girl
When objects fall through the Earth's atmosphere they get faster and faster until they reach a speed where the upwards force (air resistance) and downwards force (weight) equal each other. At this point the object travels at its fastest speed called terminal speed.
The paper weighs less so has a smaller force of gravity pulling it down.
As the paper falls its upwards air resistance increases and soon equals its downwards weight, so it then travels at terminal speed. The stone is heavier and has to be travelling a lot faster before its air resistance is large enough to equal its weight.
(from BBC bitesize)1
- Show AllShow Less