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What are examples of harmful friction?

Answer:
1. The soles of your socks wearing out
2. The gears in you care will wear down if not lubricated with oil

3. Holes in your jeans
4. Scraping your knee
Harmful friction consists of two surfaces in motion, yet not in harmony with each other or one surface in motion agains a fixed surface, which causes a wearing of one or both surfaces. Examples of harmful friction would be an abrasion to the skin from a person sliding on a rug or friction between a foot and a shoe creating heat and a blister in the skin of the foot. This is wrong. DONT USE THIS INFORMATION
First answer by ID0412340766. Last edit by Larisa Zirkiyeva. Contributor trust: 0 [recommend contributor recommended]. Question popularity: 12 [recommend question].

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