No, that is false. "Free fall" means that the only force acting on an object is GRAVITY. Specifically, there may be no significant amount of air resistance.
It's not quite possible for the only force acting on an object to be air resistance, since you can't really eliminate the effect of gravity. Though, if the object has the same density than the liquid or gas in which it is placed, the gravity may be cancelled for practical purposes.
No.
Free fall is when nothing opposes the force of gravity.
yes this statment is true.
True
The forces acting on a falling body are gravity and air resistance.
true
Air resistance is the force acting on an object moving in air that tends to slow it down or produce drag. If a stone is falling, air resistance will be acting on it to try to slow it. Should we consider a jet moving through air, air resistance will be providing drag to slow the jet down.
The word "falling" implies there is a gravitational force also. As the object gains speed, the air resistance ("drag") increases, until it equals the gravitational force. After that there is no net (resultant) force, so the object goes at constant speed.
If there is no air resistance, gravity will accelerate the falling object, that is, it will change its velocity.
Gravity and air resistance.
The forces acting on a falling body are gravity and air resistance.
Air resistance and gravity.
The forces acting on a falling body are gravity and air resistance.
True (:
true
true
true
Air resistance is the force acting on an object moving in air that tends to slow it down or produce drag. If a stone is falling, air resistance will be acting on it to try to slow it. Should we consider a jet moving through air, air resistance will be providing drag to slow the jet down.
It reduces the acceleration of the falling object due to friction.
The word "falling" implies there is a gravitational force also. As the object gains speed, the air resistance ("drag") increases, until it equals the gravitational force. After that there is no net (resultant) force, so the object goes at constant speed.
As a falling object accelerates through air, its speed increases and air resistance increases. While gravity pulls the object down, we find that air resistance is trying to limit the object's speed. Air resistance reduces the acceleration of a falling object. It would accelerate faster if it was falling in a vacuum.