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A skydiver weighs 500 N, and has a mass of 50 kg. The skydiver jumps out of a plane, and falls through air. As the skydiver continues to fall and speed up, the air drag on them increases. After they've sped up to a certain speed, the force of air drag is 500 N upward on them.
What will now happen to the sky diver once the air drag equals their weight?

(CHOOSE ALL THAT APPLY)

[ ] Their velocity will decrease
[ ] Their acceleration becomes zero
[ ] They will stop in mid air
[ ] Their velocity will increase
[ ] They will maintain constant velocity from then on
[ ] They will still accelerate, but at less than "g"
[ ] They will no longer accelerate

2006-11-30 07:21:19 · 11 answers · asked by James W 2 in Science & Mathematics Physics

11 answers

Their acceleration becomes zero
They will maintain constant velocity from then on
They will no longer accelerate

2006-11-30 07:23:36 · answer #1 · answered by Anonymous · 2 0

[ ] Their velocity will decrease
[X] Their acceleration becomes zero
[ ] They will stop in mid air
[ ] Their velocity will increase
[X ] They will maintain constant velocity from then on
[ ] They will still accelerate, but at less than "g"
[X ] They will no longer accelerate

As long as the upward force from the air drag remains constant and balances out the 500N weight of the skydiver (112lb skydiver plus equipment seems a bit low...) then a uniform "terminal velocity" will result. As always, when forces are *balanced*, uniform motion results. When forces are *unbalanced*, the system will accelerate in the direction of the larger force.

2006-11-30 07:49:27 · answer #2 · answered by wynnr 2 · 0 0

2. Their acceleration becomes zero.
5. They will maintain constant velocity from then on.
7. They will no longer accelerate.

2006-11-30 07:26:07 · answer #3 · answered by Anonymous · 1 0

interesting collection of answers moving through a fluid (like air or water); the faster you go, the greater the resistance to motion ___ this is fluid friction also; the thicker the fluid, the greater the friction (air gets thicker closer to the ground) a sky diver reaches "terminal velocity" when the air resistance balances the gravitational force ___ at this point, the speed can't increase

2016-05-23 05:37:24 · answer #4 · answered by Anonymous · 0 0

Anyone who doesn't say that thier acceleration will become zero because there is no net force acting on them, therefore they will fall at a constant velocity, is incorrect.

2006-11-30 07:36:52 · answer #5 · answered by msi_cord 7 · 0 0

[ ] Their acceleration becomes zero
[ ] They will maintain constant velocity from then on
[ ] They will no longer accelerate

2006-11-30 07:24:14 · answer #6 · answered by Vincent G 7 · 1 0

Acceleration is zero (no further acceleration), so velocity will remain constant.

2006-11-30 07:26:58 · answer #7 · answered by Anonymous · 1 0

they may stop in mid air or with a minor adjustment move in a horizontal motion until that drag either increases or decreases, and they again begin to fall, or even change their posture to cause them to be in a standing or head-diving position to decrease the area of their body that's influenced by that drag.

I think it's actually too complex an answer to be covered in your choices, depending on what percentage of the body is placed against the drag...

but as we can choose all that apply, it depends on what they will do.

2006-11-30 07:29:33 · answer #8 · answered by thellord_thighgod 3 · 0 1

They will attain constant velocity ("terminal velocity"), and they will no longer accelerate. They will, however, have tons of fun!

2006-11-30 07:23:59 · answer #9 · answered by ibkidd37 4 · 1 0

4 and 7 because the 50 kg weight hasn't been balanced out

2006-11-30 07:23:28 · answer #10 · answered by Anonymous · 0 1

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