2007-09-16 12:46:35 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Ah ah! Good question ! It is natural to choose the positive orientation to be upward. If you set the positive orientation upward, then the acceleration is less negative, so it increases. In absolute value, it decreases.
Edit: The key point is that acceleration is proportional to the total force. Gravity induces a force with a downward orientation. Air resistance, when the object is falling, induces a force with an upward orientation (always opposite to the velocity). When we add these two forces, the total force would still be downward, but with a smaller magnitude.
Just for comparison, if the object is thrown in the air and moving upward, air resistance would induce a force in the downward orientation. This force would have the same orientation as gravity. The total force would be downward with a greater magnitude. The acceleration would increase in absolute value but, if you consider the negative sign, it actually becomes more negative, so it decreases.
2007-09-16 12:55:41 · answer #1 · answered by My account has been compromised 2 · 1⤊ 0⤋
Air resistance would decrease the acceleration of a falling object.
2007-09-16 12:55:54 · answer #2 · answered by dannyukun 2 · 0⤊ 0⤋
Air resistance is a frictional force and frictional forces counter motion. If the object is falling, then the air resistance would cause the acceleration of the object to decrease...
2007-09-16 12:51:46 · answer #3 · answered by sayamiam 6 · 1⤊ 0⤋
Well there is a tricky worded query. It would have to be constant. I got here to my conclusion this fashion. If it was once growing then it might have some sort of propulsion accordingly it might now not be regarded falling. It surely would not shrink, gravity wouldn't permit for that. And all of us realized on Mr. Wizard that weight maters now not. (bear in mind when he dropped the wadded up piece of paper subsequent to the much heavier baseball. They each hit the bottom while. Plus if you haven't ever heard this it's gonna blow your intellect. If you happen to dropped a bullet on the identical precise time one left the barrel of a gun because it used to be fired they would both hit the bottom at the same time. It has to do with gravity influences the whole thing equally if there is not any air involved. Neat huh?
2016-08-04 16:26:27 · answer #4 · answered by ? 2 · 0⤊ 0⤋
That would depend on how you define your coordinates.
For instance, if you take up to be the positive direction then the acceleration of gravity is -9.8m/s. In this case the acceleration will increase (assuming it doesn't start with a speed faster than it's terminal velocity)
2007-09-16 13:03:12 · answer #5 · answered by Demiurge42 7 · 0⤊ 0⤋
Decrease
2007-09-16 12:51:45 · answer #6 · answered by misoma5 7 · 1⤊ 0⤋
What?!
the air resistance would decelerate a moving body until it balanced with gravity and the falling body would reach a constant speed [terminal velocity].
2007-09-16 12:52:47 · answer #7 · answered by Lily 2 · 1⤊ 0⤋
Depends on which way the wind is blowing..If its blowing up...because u r falling...it will slow u down a bit, but of the wind is blowing down, there will be less wind resistance, so will go faster.
2007-09-16 12:57:26 · answer #8 · answered by ejostrom07 3 · 0⤊ 0⤋
It's called air resistance not air boost! C'mon now.
2007-09-16 12:49:11 · answer #9 · answered by Anonymous · 0⤊ 0⤋
increase, if you were falling out of a airplane
2007-09-16 12:50:10 · answer #10 · answered by Anonymous · 0⤊ 3⤋