Welcome Guest [Log In] [Register]
Welcome to Guild of Gamers. We hope you enjoy your visit.


You're currently viewing our forum as a guest. This means you are limited to certain areas of the board and there are some features you can't use. If you join our community, you'll be able to access member-only sections, and use many member-only features such as customizing your profile, sending personal messages, and voting in polls. Registration is simple, fast, and completely free.


Join our community!


If you're already a member please log in to your account to access all of our features:

Username:   Password:
Add Reply
Need Help (science related)
Topic Started: Nov 26 2006, 10:48 PM (250 Views)
VirusLord
Member Avatar
The Chronicler
Does anyone know a way to measure dynamic friction?
Posted Image
Long live Virus Day!
I can scientifically prove that boredom can kill you. However, by the time I figure out how to prove it, I'd have already died of boredom.
"If my back had lips and could reach around to my face, it would kiss me right now." - Me
"Either write something worth reading or do something worth writing." ~Ben Franklin
Hama (about Misha talking in her sleep): "Like 'Ungh' or 'Moheh' or 'Ah, no...' or 'Lyner, not in there...' or..." ~Ar Tonelico
"Courage is the magic that turns dreams into reality." - Emil, ToS:DotNW
Offline Profile Quote Post Goto Top
 
BlackKnight13
Ace Attorney
Maybe.
Robert/Jenny Win Record
13-2
First to 465897465235789423750890234758920594 wins!
Offline Profile Quote Post Goto Top
 
VirusLord
Member Avatar
The Chronicler
So in other words, you don't have a clue what dynamic friction even is.
Posted Image
Long live Virus Day!
I can scientifically prove that boredom can kill you. However, by the time I figure out how to prove it, I'd have already died of boredom.
"If my back had lips and could reach around to my face, it would kiss me right now." - Me
"Either write something worth reading or do something worth writing." ~Ben Franklin
Hama (about Misha talking in her sleep): "Like 'Ungh' or 'Moheh' or 'Ah, no...' or 'Lyner, not in there...' or..." ~Ar Tonelico
"Courage is the magic that turns dreams into reality." - Emil, ToS:DotNW
Offline Profile Quote Post Goto Top
 
TJ

I can probably help you... I'm assuming it's AKA kinetic friction?
Offline Profile Quote Post Goto Top
 
BlackKnight13
Ace Attorney
So in other words, .........yeah you're right lol.
Robert/Jenny Win Record
13-2
First to 465897465235789423750890234758920594 wins!
Offline Profile Quote Post Goto Top
 
VirusLord
Member Avatar
The Chronicler
I haven't heard that term before, but it sounds right. The sort of friction that affects a moving object, I've heard it called slide friction before. I was thinking of doing a science fair project comparing the static (nonmoving) friction and dynamic (moving) friction of different surfaces, but I'm not sure how to calculate dynamic friction.
Posted Image
Long live Virus Day!
I can scientifically prove that boredom can kill you. However, by the time I figure out how to prove it, I'd have already died of boredom.
"If my back had lips and could reach around to my face, it would kiss me right now." - Me
"Either write something worth reading or do something worth writing." ~Ben Franklin
Hama (about Misha talking in her sleep): "Like 'Ungh' or 'Moheh' or 'Ah, no...' or 'Lyner, not in there...' or..." ~Ar Tonelico
"Courage is the magic that turns dreams into reality." - Emil, ToS:DotNW
Offline Profile Quote Post Goto Top
 
TJ

Yeah, that's kinetic friction. Actually, I'm not too sure on how to calculate it exactly, if you know the net force acting on an object and the applied force, the frictional force is calculated through simple means. I'll take a look through my physics textbook, and put it into simple terms, since I know you aren't a grade 12 university prep physics student. >_>
Offline Profile Quote Post Goto Top
 
VirusLord
Member Avatar
The Chronicler
The trick is that I'm not quite sure how to measure that. I mean, I figure that I can put a block on a flat surface and tie a rope to it, attach some sort of engine to the rope and set it to pull and I'll get a constant force, then maybe decrease the force until I find the point where it stops moving, but I'm not sure how I'd know how much force I was using, so that idea went down the drain.
Posted Image
Long live Virus Day!
I can scientifically prove that boredom can kill you. However, by the time I figure out how to prove it, I'd have already died of boredom.
"If my back had lips and could reach around to my face, it would kiss me right now." - Me
"Either write something worth reading or do something worth writing." ~Ben Franklin
Hama (about Misha talking in her sleep): "Like 'Ungh' or 'Moheh' or 'Ah, no...' or 'Lyner, not in there...' or..." ~Ar Tonelico
"Courage is the magic that turns dreams into reality." - Emil, ToS:DotNW
Offline Profile Quote Post Goto Top
 
TJ

kinetic friction(dynamic friction) = coefficient of kinetic friction * normal force

The coefficient of kinetic friction is a constant depending on the surfaces you're comparing, for example, the coefficient of kinetic friction would be low between an object and an icy surface, and high between an object and rough surface(like a carpet). This is an obtainable value through research, if you wanted to know the coefficient of kinetic friction for two surfaces, you can find an approximate value by Googling it.

Normal force is equal to the object's mass in kg multiplied by 9.8.

Multiply the normal force and the coefficient of kinetic friction, and there you have it, kinetic(dynamic) friction.
Offline Profile Quote Post Goto Top
 
F
Member Avatar
Everyone's favorite
*brain short circuts due to science talk*
I AM ALIVE. JOIN ME IN LIFE MY BROTHERS AND LIKE ONE SISTER!

[23:00] Byrgg: my mom said it was getting too dark for her and she's getting turned off i think v_v

CotF1692 (07:18:28 pm): you suck
ojajrrj (07:18:34 pm): Only if you're nice.
"Haha your mage can't read!" -My mom
Posted Image
Silver
Posted Image
Don't you know? Love will find a way. LOVE WILL FIND A WAY! THE LAWS OF NATURE BE DAMNED. [/cruise control] -Kijo
Offline Profile Quote Post Goto Top
 
BlackKnight13
Ace Attorney
Interesting...

*didn't actually read this*
Robert/Jenny Win Record
13-2
First to 465897465235789423750890234758920594 wins!
Offline Profile Quote Post Goto Top
 
TJ

If you ever want to program games, you'll likely HAVE to learn something about physics, kinetic friction included.

Gah, that long post was painful, I can't use letters of the Greek alphabet, subscripts, etc.
Offline Profile Quote Post Goto Top
 
BlackKnight13
Ace Attorney
Sorry that I'm not in high school/college. *goes to sob in corner*
Robert/Jenny Win Record
13-2
First to 465897465235789423750890234758920594 wins!
Offline Profile Quote Post Goto Top
 
VirusLord
Member Avatar
The Chronicler
Okay, I think I get the gist of it, but now I still have to find a way to get the coefficient of kinetic friction. Looks like I'll have my work cut out for me this year for science fair.
Posted Image
Long live Virus Day!
I can scientifically prove that boredom can kill you. However, by the time I figure out how to prove it, I'd have already died of boredom.
"If my back had lips and could reach around to my face, it would kiss me right now." - Me
"Either write something worth reading or do something worth writing." ~Ben Franklin
Hama (about Misha talking in her sleep): "Like 'Ungh' or 'Moheh' or 'Ah, no...' or 'Lyner, not in there...' or..." ~Ar Tonelico
"Courage is the magic that turns dreams into reality." - Emil, ToS:DotNW
Offline Profile Quote Post Goto Top
 
TJ

Just Google coefficent of kinetic friction of rubber tires on ice or something like that. I have a chart of some coefficients in my textbook, I can see if any of them are useful for a science fair project.
Offline Profile Quote Post Goto Top
 
1 user reading this topic (1 Guest and 0 Anonymous)
Go to Next Page
« Previous Topic · The Lounge · Next Topic »
Add Reply