Info hunt \ maximum frictional force

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Colin19
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First of all I would like to clearify that I am in a programme that gives physics questions with littile previous learning and relies on individual determenation and efforts to deliver answers " Self learning " , " Info Hunt "
In the time most of you were learning science
I was busy learning English ,
I never studied physics in my life in Arabic nor in English
So please have patient and help me through my beginning
Hopefully that is answering a lot of assumptions
" Oh this guy is playing " " Get serious " ...etc

Question :
A body with mass 25 kg lying on a level floor has a steadily increasing horizontal force applied to it . If mu = 0.4
Calculate the maximum frictional force applied ?

Now I'm not asking for a quick answer like past attempts ,
I'm asking you to guide\help me understand\solve it my self
As I know no method or a clue of what to do ...
 
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Colin19 said:
First of all I would like to clearify that I am in a programme that gives physics questions with littile previous learning and relies on individual determenation and efforts to deliver answers " Self learning " , " Info Hunt "
In the time most of you were learning science
I was busy learning English ,
I never studied physics in my life in Arabic nor in English
So please have patient and help me through my beginning
Hopefully that is answering a lot of assumptions
" Oh this guy is playing " " Get serious " ...etc

Question :
A body with mass 25 kg lying on a level floor has a steadily increasing horizontal force applied to it . If mu = 0.4
Calculate the maximum frictional force applied ?

Now I'm not asking for a quick answer like past attempts ,
I'm asking you to guide\help me understand\solve it my self
As I know no method or a clue of what to do ...
What do you know about frictional force ?
 
Colin19 said:
First of all I would like to clearify that I am in a programme that gives physics questions with littile previous learning and relies on individual determenation and efforts to deliver answers " Self learning " , " Info Hunt "
In the time most of you were learning science
I was busy learning English ,
I never studied physics in my life in Arabic nor in English
So please have patient and help me through my beginning
Hopefully that is answering a lot of assumptions
" Oh this guy is playing " " Get serious " ...etc

Question :
A body with mass 25 kg lying on a level floor has a steadily increasing horizontal force applied to it . If mu = 0.4
Calculate the maximum frictional force applied ?

Now I'm not asking for a quick answer like past attempts ,
I'm asking you to guide\help me understand\solve it my self
As I know no method or a clue of what to do ...

Look up "static friction".
 
SammyS said:
What do you know about frictional force ?

I know that friction is the force that is acting against motion
What I understood is, the term frictional force means basically the amount of resistance that the friction can demonstrate against a body's motion acted upon by an opposite force
to prevent it or slow it down .
 
My approch to solve now is :
to get the max friction I'll use this equation :
f = mu F
f : max friction
mu : coefficient of friction
F : Normal force
,
What I have in the Question
Is the mass 25kg and the mu 0.4 , and as it is laying on a level floor
I got g 9.81 m\s
,
So to apply the first equation I would need to find the normal force by this one:
N= m g
...
Gents am I going through the correct way ?
 
Colin19 said:
My approch to solve now is :
to get the max friction I'll use this equation :
f = mu F
f : max friction
mu : coefficient of friction
F : Normal force
,
What I have in the Question
Is the mass 25kg and the mu 0.4 , and as it is laying on a level floor
I got g 9.81 m\s
,
So to apply the first equation I would need to find the normal force by this one:
N= m g
...
Gents am I going through the correct way ?

So far so good. You've got the normal force, so what's the maximal frictional force?
 
f = mu F
f = 0.4 x 245.25
f = 98.1 N
Answer is
Maximum frictional force is 98.1 N
?
 
Colin19 said:
f = mu F
f = 0.4 x 245.25
f = 98.1 N
Answer is
Maximum frictional force is 98.1 N
?

Looks good :smile:
 
Many thanks
 
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