Info hunt \ maximum frictional force

In summary, the person asking the question is in a program that requires self-learning and is seeking help to understand and solve a physics problem. They have little previous knowledge in physics and are asking for guidance rather than a quick answer. The problem involves finding the maximum frictional force applied to a body with a mass of 25 kg and a steadily increasing horizontal force. They correctly use the equation f = mu F to find the maximum frictional force of 98.1 N.
  • #1
Colin19
31
0
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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  • #2
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 ?
 
  • #3
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".
 
  • #4
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 .
 
  • #5
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 ?
 
  • #6
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?
 
  • #7
f = mu F
f = 0.4 x 245.25
f = 98.1 N
Answer is
Maximum frictional force is 98.1 N
?
 
  • #8
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:
 
  • #9
Many thanks
 
Last edited:

What is "Info hunt" and maximum frictional force?

"Info hunt" refers to the process of gathering information or data through research, investigations, or experiments. Maximum frictional force, also known as static friction, is the maximum amount of force that can be applied to an object before it starts to move or slide.

Why is understanding maximum frictional force important?

Understanding maximum frictional force is important for engineers and scientists in designing and creating structures, machines, and devices. It helps in determining the amount of force needed to keep objects in place and prevent them from sliding or moving.

How is maximum frictional force calculated?

The maximum frictional force can be calculated using the formula F = µN, where F is the maximum frictional force, µ is the coefficient of friction, and N is the normal force or weight of the object pressing against the surface.

What factors affect maximum frictional force?

The coefficient of friction, the nature of the surfaces in contact, and the normal force are the main factors that affect maximum frictional force. Other factors that may influence it include temperature, surface roughness, and the presence of lubricants.

How can maximum frictional force be increased?

Maximum frictional force can be increased by increasing the coefficient of friction, increasing the normal force, or using materials with rougher surfaces. Additionally, reducing the use of lubricants or increasing the weight of the object can also increase maximum frictional force.

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