Static friction is the friction which comes into play when surfaces of the objects are at rest relative to each other even there is an external force acted upon.
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Example:
In figure-2,
The block is at rest relative to the surface of the trolley up to a certain limiting acceleration. The friction exists at this stage is a static friction.
we observe that there exists two types of fictional force at a time. One is friction between surface of the table and trolley and the other is the statio friction that exists between the surface of trolley and wooden block kept on it.
Answers & Comments
Answer:
Static friction-Is the friction exerted on an object at rest.
SLIDING FRICTION-IS the friction exerted when an object slides over a surface with a working fluid in between the two bodies.
Explanation:
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[tex] \large \purple \maltese \: \red{ \underline{ \underline{\large \bf{ Sliding\: Friction}}} : - }[/tex]
Definition :
Sliding friction is the friction which comes into play when the surface of one object moves relative to the surface of another object
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Example :
In figure-1,
The book moves with respect to the floor. So, this friction is called sliding friction.
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[tex] \large \purple \maltese \: \red{ \underline{ \underline{\large \bf{ Static\: Friction}}} : - }[/tex]
Definition :
Static friction is the friction which comes into play when surfaces of the objects are at rest relative to each other even there is an external force acted upon.
[tex] \: [/tex]
Example :
In figure-2,
The block is at rest relative to the surface of the trolley up to a certain limiting acceleration. The friction exists at this stage is a static friction.
we observe that there exists two types of fictional force at a time. One is friction between surface of the table and trolley and the other is the statio friction that exists between the surface of trolley and wooden block kept on it.
[tex] \: [/tex]