443 Views

What is the formula of friction?


Smile Goyal 5th Apr, 2018
Answers (3)
Ishika Mishra 5th Apr, 2018

Friction is a force that opposes the motion of an object. There are two types of frictions,

STATIC FRICTION

KINETIC FRICTION

static friction , F s max = μ s F n where μ s = coefficient of static friction and Fn is the normal force

B.Tech/B.Arch Admissions OPEN

Apply to Amity University Noida B.Tech Admissions 2025

kinetic friction, F k = μ k F n where,

μ k= coesfficient of kinetic friction

Ankit raj 5th Apr, 2018

In asking this question, you my not have realized that most work that occurs on the horizontal plane is done by friction, and against friction.

As was mentioned, work = force x distance.

With friction, force = uN where N is the force between two surfaces, and u is the co-efficient of sliding friction ( static friction does no work whatsoever, since there is no distance involved ).

So work = u x N x d

The co-efficient of friction between two surfaces, multiplied by the force between two surfaces multiplied by the distance traveled of one surface relative to the other.

Finally, work usually is done by friction to overcome friction, so be careful of your context. You can probably quantify this in your answer.

JEE Main 2025 - 10 Full Mock Test

Aspirants who are preparing for JEE Main can download JEE Main 2025 mock test pdf which includes 10 full mock test, high scoring chapters and topics according to latest pattern and syllabus.

Download EBook
Ishika Mishra 5th Apr, 2018

Sorry I think there's some printing mistakes in my previous answer

Friction is a force that opposes the motion of an object. There are two types of frictions,

STATIC FRICTION

KINETIC FRICTION

static friction Fs = UsFn where (Us (mu) = Coefficient of static friction and Fn = Normal force)

kinetic friction Fk = UkFn where (Uk = Coefficient of kinetic friction

Know More About

Related Questions

Amity University Noida B.Tech...
Apply
Among Top 30 National Universities for Engineering (NIRF 2024) | 30+ Specializations | AI Powered Learning & State-of-the-Art Facilities
VIT - VITEEE 2025
Apply
National level exam conducted by VIT University, Vellore | Ranked #11 by NIRF for Engg. | NAAC A++ Accredited | Last Date to Apply: 7th April | NO ...
Symbiosis-SITEEE-2025
Apply
Gateway for admissions to Engineering courses @ Symbiosis | NAAC A++ Grade | Among top 31 in India (NIRF 2024)
Chandigarh University Admissi...
Apply
Ranked #1 Among all Private Indian Universities in QS Asia Rankings 2025 | Scholarships worth 210 CR
Sushant University B.Tech Adm...
Apply
Top Recruiters - HCL, Amazon, Deloitte, Axis Bank, Accenture, etc.
UPES B.Tech Admissions 2025
Apply
Ranked #42 among Engineering colleges in India by NIRF | Highest CTC 50 LPA , 100% Placements
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books