Posted by **Anne** on Friday, October 15, 2010 at 9:12pm.

For my question about the carton's speed must I do each step you laid out or just the last one? I got the wrong answer. Thanks for your help.

- physics -
**bobpursley**, Friday, October 15, 2010 at 9:22pm
I wish you had checked it step by step, and you would have immediately realized I mixed up the Sin, Cos terms, they are in opposite to what I typed.

Force down plane mgSinTheta, force friction mu*mg*CosTheta.

Duh on me, and duh on you for not working it thru and checking.

- physics -
**Anne**, Friday, October 15, 2010 at 10:20pm
I worked it through and checked it didn't make sense to me. But I have to finish the assignment soon so I put the answer in anyway. Thanks for you patience.

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