First of all, gravity is not a force, it is an acceleration. What you mean is the force of weight, which is the acceleration of gravity multiplied by mass (all forces are vectors, and gravity is not a vector.) When air resistance is subtracted from weight, you have the net force on a falling object (assuming those are the only forces acting on it.)
When you subtract the force of air resistance from the force of gravity, you get the net force acting on the object. This net force determines the object's acceleration and motion.
They are the different vectors.Only same type of vectors can be added or subtracted.
Terminal Velocity
Since gravity attracts the ball downward, and air resistance acts upwards (assuming that it falls straight down), you need to subtract the force of gravity (i.e., the weight) minus the air resistance.
Air has no effect on gravity. But the presence of air can change the response of an object to the force of gravity alone.
Air resistance is a type of friction that opposes the motion of an object moving through the air. It occurs when air molecules come into contact with the surface of the object, creating drag force that slows down the object's movement.
The idea is to calculate the downward force of gravity, and then subtract the air resistance, since it acts in the opposite way. This assumes that the ball falls directly downward.
Terminal veloxity
Terminal Velocity
Air resistance is a type of friction that opposes the motion of an object moving through the air. It occurs when air molecules come into contact with the surface of the object, creating drag force that slows down the object's movement.
Yes, there is a maximum velocity for a falling object, known as terminal velocity. Terminal velocity is reached when the force of air resistance on the falling object is equal to the force of gravity acting on it, resulting in a constant velocity. The terminal velocity varies depending on factors like the object's size, shape, and weight.
Terminal Velocity
Since gravity attracts the ball downward, and air resistance acts upwards (assuming that it falls straight down), you need to subtract the force of gravity (i.e., the weight) minus the air resistance.
Air has no effect on gravity. But the presence of air can change the response of an object to the force of gravity alone.
Gravity and Resistance Under free fall, the only force acting upon an object is the force of gravity. But realistically, there is also the force of friction from the air (Air Resistance) that opposes the force of gravity.
The force that acts on a ball when in the air is gravity.
The idea is to calculate the downward force of gravity, and then subtract the air resistance, since it acts in the opposite way. This assumes that the ball falls directly downward.
The net force on a following object
"Free fall" means that gravity is the only force acting on a body.