Horizontal Force - Friction Problem

[tylenolman]

http://img151.imageshack.us/img151/8411/physicsks7.jpg

http://www.glpics.com/cristianb/Pics/penguin%20physics.JPG

How would I go about solving this problem?
Do you just ignore the sled and snow friction?
Any help would be great.

 

[Delzac]

You can't ignore the sled and snow friction. Please that note that the force you exert of the sled + penguin is not the force experience by the penguin, since part of the force is " filtered" off by friction between the snow and sled.

This should be enough to send you in the right direction :)

Off Topic : Cute Penguin you have BTW