is projectile motion 3 dimensional or 2 dimensional?

For the discussion of the sciences. Physics problems, chemistry equations, biology weirdness, it all goes here.

Moderators: gmalivuk, Moderators General, Prelates

muheedmir007
Posts: 3
Joined: Sat Feb 18, 2017 2:52 pm UTC

is projectile motion 3 dimensional or 2 dimensional?

Postby muheedmir007 » Fri Mar 10, 2017 3:33 pm UTC

can any one answer this please

User avatar
Soupspoon
You have done something you shouldn't. Or are about to.
Posts: 1832
Joined: Thu Jan 28, 2016 7:00 pm UTC
Location: 53-1

Re: is projectile motion 3 dimensional or 2 dimensional?

Postby Soupspoon » Fri Mar 10, 2017 3:40 pm UTC

What is your current understanding? Under what constraints is your projectile operating, and which freedoms? What are your frames of reference? Is this homework?

User avatar
Flumble
Yes Man
Posts: 1777
Joined: Sun Aug 05, 2012 9:35 pm UTC

Re: is projectile motion 3 dimensional or 2 dimensional?

Postby Flumble » Fri Mar 10, 2017 5:04 pm UTC

Projectile motion is 0-dimensional, as proven by Zeno.

User avatar
doogly
Dr. The Juggernaut of Touching Himself
Posts: 5141
Joined: Mon Oct 23, 2006 2:31 am UTC
Location: Somerville, MA
Contact:

Re: is projectile motion 3 dimensional or 2 dimensional?

Postby doogly » Fri Mar 10, 2017 5:05 pm UTC

Do you know what a dimension is? Can you throw something and check what happens?
LE4dGOLEM: What's a Doug?
Noc: A larval Doogly. They grow the tail and stinger upon reaching adulthood.

Keep waggling your butt brows Brothers.
Or; Is that your eye butthairs?

User avatar
gmalivuk
GNU Terry Pratchett
Posts: 25395
Joined: Wed Feb 28, 2007 6:02 pm UTC
Location: Here and There
Contact:

Re: is projectile motion 3 dimensional or 2 dimensional?

Postby gmalivuk » Fri Mar 10, 2017 5:22 pm UTC

It's at least 4-dimensional, and possibly 10 or 26 depending on your preference of string theory.

Though admittedly the motion in one or more of those dimensions is generally considered negligible.
Unless stated otherwise, I do not care whether a statement, by itself, constitutes a persuasive political argument. I care whether it's true.
---
If this post has math that doesn't work for you, use TeX the World for Firefox or Chrome

(he/him/his)

User avatar
doogly
Dr. The Juggernaut of Touching Himself
Posts: 5141
Joined: Mon Oct 23, 2006 2:31 am UTC
Location: Somerville, MA
Contact:

Re: is projectile motion 3 dimensional or 2 dimensional?

Postby doogly » Fri Mar 10, 2017 6:02 pm UTC

I had to do coriolis acceleration in Physics 1, and look how well I turned out! Grumble grumble.
LE4dGOLEM: What's a Doug?
Noc: A larval Doogly. They grow the tail and stinger upon reaching adulthood.

Keep waggling your butt brows Brothers.
Or; Is that your eye butthairs?

User avatar
LaserGuy
Posts: 4299
Joined: Thu Jan 15, 2009 5:33 pm UTC

Re: is projectile motion 3 dimensional or 2 dimensional?

Postby LaserGuy » Fri Mar 10, 2017 10:09 pm UTC

muheedmir007 wrote:can any one answer this please


Go outside and throw a rock. How many spatial dimensions does it take to describe the path? Now repeat the experiment using a frisbee. Does that change your answer?

User avatar
Soupspoon
You have done something you shouldn't. Or are about to.
Posts: 1832
Joined: Thu Jan 28, 2016 7:00 pm UTC
Location: 53-1

Re: is projectile motion 3 dimensional or 2 dimensional?

Postby Soupspoon » Fri Mar 10, 2017 11:05 pm UTC

LaserGuy wrote:
muheedmir007 wrote:can any one answer this please


Go outside and throw a rock. How many spatial dimensions does it take to describe the path? Now repeat the experiment using a frisbee. Does that change your answer?

Warning: If you live in a glass house, do not attempt the first experiment.
Warning: If you live in a Nerf house, you can attempt the second experiment but watch out for light breezes. Like you already have to, unless you've not yet found the right neighbours and like moving every time there's a light gust.

User avatar
Qaanol
The Cheshirest Catamount
Posts: 3022
Joined: Sat May 09, 2009 11:55 pm UTC

Re: is projectile motion 3 dimensional or 2 dimensional?

Postby Qaanol » Wed Mar 15, 2017 7:08 pm UTC

Pretty sure it’s one-dimensional, though depending on your universe that 1D path may be embedded in some other topology.
wee free kings

DewOnTheGrass
Posts: 2
Joined: Mon Apr 10, 2017 3:57 pm UTC

Re: is projectile motion 3 dimensional or 2 dimensional?

Postby DewOnTheGrass » Mon Apr 10, 2017 4:21 pm UTC

Simple projectile motion (interpreted as throwing a ball straight forward w/o any outside forces except gravity and initial thrust) would be three-dimensional: The ball travels away from you (1), up, then down (2), and through time (3), thus travelling through three dimensions. If there is wind (not parallel to the ball's trajectory), then the ball also travels laterally, bringing our total to four.

User avatar
Eebster the Great
Posts: 2475
Joined: Mon Nov 10, 2008 12:58 am UTC

Re: is projectile motion 3 dimensional or 2 dimensional?

Postby Eebster the Great » Wed Apr 12, 2017 9:38 pm UTC

Qaanol wrote:Pretty sure it’s one-dimensional, though depending on your universe that 1D path may be embedded in some other topology.

Only if the projectile is pointlike.


Return to “Science”

Who is online

Users browsing this forum: gmalivuk and 6 guests