Question

why static friction is more than sliding friction

Answer 1

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$<marquee direction="right" behavior="alternate"><big><big><b>Answer:</b></big></big></marquee>$

Static friction is more than sliding friction because to set a stationary object into motion takes more force than to keep moving an object already in motion. But why is this so? To understand that, let's dive into the scientific reason.

$<big><b>Scientific Reason:</b></big> When two objects are in contact, electronic bonds form between the atoms of the surfaces in contact with each other. For the object to move over another object, it has to break the bonds that form between them. When an object, in contact with another, is <b>stationary</b>, i.e. not moving, the electronic bonds that form get enough time to become <u>strong</u>. Whereas, when an object is in <b>motion</b>, the atoms of the surfaces in contact with each other, do <u>not get enough time</u> to form strong bonds. This is the reason why static friction is more than sliding friction.$

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