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dynamic friction & sliding friction

dynamic friction & sliding friction

dynamic friction & sliding friction

(OP)
A new data sheet is being drafted and I'm stuck over which description implies greater accuracy. Will "dynamic friction", as opposed to "sliding friction" which apparently is a newer alternative description carry the day?
Static friction. Well no change there.
Rolling friction. No problem, it describes the type of friction.
Sliding friction. I'm getting the hang of this.
Dynamic friction? I know what it is, I learned it at school and I'm comfortable with it, but now, alongside the others, it seems out of place.
Thanks for your help

RE: dynamic friction & sliding friction

The term dynamic friction is not as clear or precise as sliding friction.  For example, when applied to vehicle tires moving along a surface, dynamic friction is when the tire is not rotating, but rather when it is sliding.  Conversely, static friction is when the tire is rotating, but not sliding.  Confusing.

Regards,

Cory

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RE: dynamic friction & sliding friction

(OP)
Thanks Cory I must admit I wasn't thinking of a tyre as an example but it works fine for the two examples you provided.

RE: dynamic friction & sliding friction

I thought that sliding, kinetic, and dynamic friction are all meant to be, in principle, the same type of friction. Am I right ?

RE: dynamic friction & sliding friction

(OP)
Yes, in as much that all infer movement. However, when there are two opposing solid surfaces and one is sliding over the other just as cory says, it is more exact to describe as sliding friction.

RE: dynamic friction & sliding friction

"Infer"? Shouldn't that be "imply"? Sliding, kinetic, and dynamic friction all IMPLY movement.  

(Do not infer extraordinary punctiliousness on my part, but considering the forum I am compelled to comment! :)

RE: dynamic friction & sliding friction

(OP)
Cheeky
I stand by infer(alternative word = assume) but accept that imply is an excellent alternative.

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