You devise another means of testing the coefficient of friction. You now take block A and have it travel up the bar BC when the angle associated with theta is 30 degrees. Again, given a coefficient of kinetic friction of 0.3, what is the acceleration (in ft/s2) of the block while it is moving?

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy