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I have this lab due by tomorrow morning and I dont understand any of this .ย
on question #14 , ch. 7 ,(college physics 7th edition by SERWAY) I dont really understand the u - is that suppose to mean Fn(normal force ) - I think Fn = mg = mvsquared/r & the m's cancel - well I dont understand the last step in the soln. to the problem #14 , please help with that , thank you