#### Answer

0.17

#### Work Step by Step

Using the equation of motion: v^{2} = v_{0}^{2}+2a(x-x_{0} plug in the velocities and change in x to solve for the acceleration.
Once you have a=1.63333, plug it in to the kinetic friction equation: F_{k}=μ_{k}N
In this case we know that the normal force is mass * the acceleration of gravity so μ_{k}=\frac{a}{g}
Plug in the acceleration we found and 9.81 for g to solve.