Calculate Kinetic Friction from Time, Displacement, Height & Length

AI Thread Summary
To calculate the coefficient of kinetic friction using time, displacement, height, and length, first determine the acceleration of the object using the equation s = ut + 0.5at². Once the acceleration is known, apply Newton's second law (F = ma) to relate the forces acting on the object. The net force can be expressed in terms of gravitational force and frictional force. By rearranging the equations, the coefficient of kinetic friction can be derived. This method effectively allows for the calculation of kinetic friction from the provided variables.
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Homework Statement


I have a lab on friction I did in class, I have missed couple of days and and its due today, what i need to know is how can i calculate the friction of the object if I have the following given , the time it took for the object to come down the raamp, the displacement , the height of the inclined surface and length.

Note I want to know the coefficient kinetic friction, not static.( i know how i can get that)


Homework Equations



I don't really know which one to go with.

The Attempt at a Solution



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Using s=ut+0.5at2 you can get the resultant acceleration of the car.

If you apply Newton's 2nd Law to the car, what expression do you get?
 

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