Inclined plane problem with friction

[AndrewC]

Homework Statement

During a flume ride the boat plunges 54 feet down a 43 degree incline. Assuming coefficient of friction .12 determine the acceleration of the boat.[/B]

Homework Equations

I'm really not sure, no mass is given or force. All of the equation I know involve mass or force.

The Attempt at a Solution

Im not even sure how to find horizontal or vertical components without mass. Acceleration due to gravity is 9.8 m/s^2. Used tangent to find the sides of the triangle. So I'm stuck, no idea where to even start. Really appreciate any suggestions.

 

[gneill]

Apply your usual formulas with mass included, leaving the mass as a variable. You should find that it cancels out along the way (so you didn't really need it after all).