A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 one year ago
If friction does'nt depend on surface area of contact between the two surfaces then why sliding friction is higher than rolling friction??please help really tangled with this one...
anonymous
 one year ago
If friction does'nt depend on surface area of contact between the two surfaces then why sliding friction is higher than rolling friction??please help really tangled with this one...

This Question is Closed

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@arindameducationusc

EmmaTassone
 one year ago
Best ResponseYou've already chosen the best response.1Its an experimental result, sliding friction increases until the force that tries to produce the movement exceed the maximum of sliding friction and then the friction force starts to do less force than when the object wasnt moving.

EmmaTassone
 one year ago
Best ResponseYou've already chosen the best response.1It is experimentally observed but i think there is a microscopic explanation about why it happens but i disown it.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I understand what you are willing to say but i think you did'nt get my point...i was saying that if friction do not depend on surface area of contact which is obviously macroscopic....so why it is harder to drag a cube of same mass than a wheel of identical mass and weight...it means a cube have greater friction bcoz it have greater surface area of contact than a wheel...as far as i know friction only depends on foce normal to it which is weight of the body and as both the cube and the wheel have same weight so there should be the same effort dragging any of them...

EmmaTassone
 one year ago
Best ResponseYou've already chosen the best response.1If the cube and the wheel are made of the same material, I think it shouldnt be harder to drag the cube

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Then why we use wheel for our cars not cubes????? @emmatassone

EmmaTassone
 one year ago
Best ResponseYou've already chosen the best response.1because the wheel rolls and the cube doesn't. The fact is that if we drag a wheel, without making it rolling, it wont be harder to drag the wheel or the cube if they are made of the same material.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0It means the convenience in the case of the wheel is because of rolling...is'nt it???

EmmaTassone
 one year ago
Best ResponseYou've already chosen the best response.1The fact that the wheels can roll doesnt mean they have more friction than cubes which cant roll because of they geometry.
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.