Inclined plane problem with friction

AI Thread Summary
To solve the inclined plane problem with friction, the key is to apply Newton's second law while treating mass as a variable. The acceleration of the boat can be determined using the gravitational force component along the incline and the frictional force, which depends on the coefficient of friction. The gravitational acceleration is 9.8 m/s², and the incline angle is 43 degrees. By using trigonometric functions to resolve forces into components, mass will cancel out in the calculations. This approach allows for finding the acceleration without needing the specific mass of the boat.
AndrewC
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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.
 
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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).
 
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