A pullback toy car is pulled back. How far will it go before it stops?
The Attempt at a Solution
Later in the run spring constant is irrelevant, so
I think I can figure out the μ by pulling the car back on the ramp and lowering the angle between the ramp and the surface until car starts rolling. Then the tangent of that angle tanθ=μ
Would this be correct? Also, what experiment or method would you propose to figure out the coefficient of spring? Disassembling the toy is not an option.
I apologize I didn't put formulas the proper way, however I couldn't get Latex to work even though I followed FAQ instructions.