Baseball player sliding to base with kinetic friction

[jwang023]

Homework Statement

A baseball player slides into 3rd base with an intitial speed of 3.6 m/sec. If coefficient of kinetic friction between the player and the ground is 0.41, how far does the player go before rest?

Homework Equations

Fx= -fk= ma
fk= mu sub k *N

The Attempt at a Solution

 

[tiny-tim]

Hi jwang023!

Hint: use work done and the work-energy theorem