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why is co-efficient of kinetic friction less than static friction?

why is co-efficient of kinetic friction less than static friction?

Grade:11

1 Answers

vardaan -
34 Points
11 years ago

hello yogesh sahdev, You can understand this by "interlocking of molecules" When something is interlocked, you need extra force to "break" the interlocking and then start the object to move. Hence an extra force is needed. This "interlocking force" is static friction. When, once the interlocking is broken, the movement has already started, so due to "inertia" it becomes easier to move.

do approve my ans.

thanks

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