Notice: Payments for answers will end 4/10/2017. Click for more info.
You have new items in your feed. Click to view.
Question and answer
Q: uses of friction
A: Explanation of the Uses of Friction by Ron Kurtus - Succeed in Understanding Physics. [ Also refer to physical science, walking, writing, pencil, eraser, ice, automobile brakes, tires, coefficient, sliding, rolling, lubrication, energy waste, heat, loss, wear, shoe, sole, School for Champions. Copyright © Restrictions Uses of Friction by Ron Kurtus (revised 21 May 2009) Although you normally
hear about trying to reduce or eliminate friction, it actually has some important uses. Since friction is a resistance force that slows down or prevents motion, it is necessary in many applications to prevent slipping or sliding. In those cases, there is an advantage of having friction. However, too much friction can be a nuisance, because it can hinder motion and cause the need for expending extra energy. A good compromise is necessary to get just enough friction. Questions you may have include: What are important uses of friction? How is friction a nuisance? What is a good compromise for using friction? This lesson will answer those questions. Useful tool: Metric-English Conversion Important uses In some situations, friction is very important and beneficial. There are many things that you could not do without the force of friction. Walking You could not walk without the friction between your shoes and the ground. As you try to step forward, you push your foot backward. Friction holds your shoe to the ground, allowing you to walk. Consider how difficult it is to walk on slippery ice, where there is little friction. Bear did not heed warning sign Bear did not heed warning sign Writing Writing with a pencil requires friction. You could not hold a pencil in your hand without friction. It would slip out when you tried to hold it to write. The graphite pencil led would not make a mark on the paper without friction. A pencil eraser uses friction to rub off mistakes written in pencil lead. ]
Expert answered|Judit|Points 142|
Question
Asked 11/5/2012 2:51:59 PM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
26,578,326 questions answered
Popular Conversations
6. Solve the equation. Show your work. Check your answer. 3x – 7 = 5x ...
Weegy: 3x – 7 = 5x + 19 , 3x - 5x = 19+7, -2x = 26, - x=26/2, x=-13
1/10/2018 8:46:51 AM| 3 Answers
9/11= /22
Weegy: Multiply the numerator of the first fraction by the denominator of the second fraction. Set this equal to the ...
1/10/2018 4:50:25 PM| 3 Answers
Simplify this expression: 19 – (–8) – (–14) = ? A. 25 ...
Weegy: 19 ? (?8) ? (?14)
1/15/2018 10:29:20 PM| 2 Answers
Cells are the basic of our bodies.
Weegy: Cells are the basic of our bodies. TRUE
1/10/2018 7:36:07 AM| 2 Answers
An informal meeting with a person who works in a career that ...
Weegy: An informal meeting with a person who works in a career that interests you is known as a Informational ...
1/10/2018 11:01:28 AM| 2 Answers
Which unit do astronomers use for angular ...
1/18/2018 7:10:19 PM| 2 Answers
Which of the following is an example of a long-term climatic change? ...
Weegy: Ice age is an example of a long-term climatic change. User: In what times of year are tropical cyclones most ...
1/18/2018 8:30:25 PM| 2 Answers
Weegy Stuff
S
L
R
Points 556 [Total 848] Ratings 1 Comments 546 Invitations 0 Offline
S
L
Points 96 [Total 4547] Ratings 0 Comments 36 Invitations 6 Online
S
P
L
P
Points 65 [Total 183] Ratings 0 Comments 65 Invitations 0 Offline
S
Points 17 [Total 17] Ratings 0 Comments 17 Invitations 0 Offline
S
Points 10 [Total 10] Ratings 0 Comments 0 Invitations 1 Offline
S
Points 10 [Total 10] Ratings 1 Comments 0 Invitations 0 Offline
S
P
Points 5 [Total 44] Ratings 0 Comments 5 Invitations 0 Offline
S
Points 3 [Total 3] Ratings 0 Comments 3 Invitations 0 Offline
S
Points 2 [Total 2] Ratings 0 Comments 2 Invitations 0 Offline
S
Points 1 [Total 2] Ratings 0 Comments 1 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.