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Question
Which of the following is the correct order of different types of frictional forces based on their magnitude?
Which of the following is the correct order of different types of frictional forces based on their magnitude?
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Solution
The correct option is C Rolling friction < Sliding friction < Static friction
Rolling friction comes into play when an object rolls over a surface. So the points of contact has very less space and time to interlock, hence the friction is the least.
Sliding friction comes into play when an object slides over a surface. Thus, the points of contact have less time to interlock as compared to static friction.
Static friction is a force that hinders the movement of an object from the state of rest. In case of static friction, the points of contact will be tightly interlocked with each other.
Based on the extent of interlocking between the surfaces in contact, the magnitude of different types of frictional forces varies as given below:
Rolling friction < Sliding friction < Static friction
Rolling friction comes into play when an object rolls over a surface. So the points of contact has very less space and time to interlock, hence the friction is the least.
Sliding friction comes into play when an object slides over a surface. Thus, the points of contact have less time to interlock as compared to static friction.
Static friction is a force that hinders the movement of an object from the state of rest. In case of static friction, the points of contact will be tightly interlocked with each other.
Based on the extent of interlocking between the surfaces in contact, the magnitude of different types of frictional forces varies as given below:
Rolling friction < Sliding friction < Static friction
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