http://img693.imageshack.us/img693/9601/screenhunter002d.jpg
What do I do now?
I found the Force of Friction by doing Ff=uFn. 21*37.8=7.938
How do I find the speed?
Do I use:
(Vf)^2=(Vi)^2+2ad
But then to find the Vf, I need the distance and acceleration.
How do I find the distance and...
Homework Statement
http://img687.imageshack.us/img687/8417/screenhunter002.jpg
Homework Equations
I don't know.
The Attempt at a Solution
I don't even know where to begin...