Posted by Eileen on Wednesday, December 14, 2011 at 9:17am.
net force= ma
400-forcefriction=ma
400-mu*mg=ma
where a= 4/5 m/s^2
solve for mu
I've tried over and over and get mu = .36 which I know is wrong. (Supposed to be .51)
What am I doing wrong?
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