a.)In the physics lab you will use two different methods for the determination of μk. what...
a.)In the physics lab you will use two different methods for the determination of μk. what physics laws will you apply in each method?
b.)what can you say about the direction of the force of friction ?
Homework Answers
a) The laws of Physics that will be used in determining the coefficient of kinetic friction is the Newton's second law of motion. It says that the sum of forces is equal to the mass times acceleration. Applying it along y axis we get the normal force and applying along x we get friction force f.
We know, f =uN. Using this we calculate u.
b) The direction of the force of friction is opposite to the direction of motion.
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