Table of Contents
Does air resistance increase time of flight?
A: When an object is dropped from rest (and we ignore air resistance) the time it takes to reach the ground depends only on the initial height and the acceleration of the object. In general, this air resistance will mean that an object dropped from a certain height will take longer to reach the ground.
How does air resistance affect time of flight of a projectile?
The air resistance helps the object going up, thus decreasing the time going up while the air resistance delays the object going down, thus increasing the time going down.
Does air resistance decrease time of flight?
Total time of flight will decrease if air resistance is also considered. This is because the time of ascent with air resistance will be less than that without air resistance and the maximum height of the projectile will be less with air resistance than that without it.
How does air resistance affect the time taken for an object to fall?
As an object falls, it picks up speed. The increase in speed leads to an increase in the amount of air resistance. Eventually, the force of air resistance becomes large enough to balances the force of gravity. In situations in which there is air resistance, more massive objects fall faster than less massive objects.
When air resistance acts on a projectile does it affect the horizontal component?
In the absence of air resistance the only force acting on a projectile in flight is the weight of the object. Weight by definition acts vertically downwards, hence no horizontal component.
How do you do air resistance in projectile motion?
Mathematically, the resistive force represented by the vector F can be written as F=-f(v) u, where u=V/|V| is the unit vector along the direction of the velocity V. The minus sign guarantees that the air resistance acting on the projectile is always opposite to the direction of its velocity.
What is the effect of air resistance on time of flight and horizontal range of projectile?
The effect of air resistance is to increase time of flight and decrease horizontal range.
What are the factors affecting the flight path of a projectile?
Factors affecting the flight path of a Projectile are:
- Gravity.
- Air Resistance.
- Speed of Release.
- Angle of Release.
- Height of Release.
- Spin.
Does air resistance affect the trajectory of a projectile?
Projectile Motion with Air Resistance. Furthermore, there is always an initial time interval during which the trajectory is identical to that calculated in the absence of air resistance ( i.e., ). Finally, in the presence of air resistance, the projectile tends to fall more steeply than it rises.
How does air resistance affect net acceleration and time of descent?
Thus, time ascent decreases due to air resistance. Time of descent; During descent of projectile , though weight of projectile act in downward direction but the air resistance acts in upward direction. (As, it opposes the motion) Because of this, net downward acceleration decreases and time of descent increases.
What is the time of descent of a projectile?
Time of descent; During descent of projectile , though weight of projectile act in downward direction but the air resistance acts in upward direction. (As, it opposes the motion) Because of this, net downward acceleration decreases and time of descent increases.
Is air resistance directly proportional to speed?
Suppose, further, that, in addition to the force of gravity, the projectile is subject to an air resistance force which acts in the opposite direction to its instantaneous direction of motion, and whose magnitude is directly proportional to its instantaneous speed.