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1. Sketch a pulley system that will give a 2 to 1 mechanical advantage. Provide a free body diagram illustrating the key forces involved.
2. A 2 kg mass of steel is placed on a slate table that has a μS of 0.2 and a μK of 0.15. How much force must be applied horizontally to the table in order to start the mass moving? If enough mass is supplied to start the mass moving, what will it’s resulting acceleration be? How long will it take the mass to move 0.75 m?
3. A 2 kg mass of steel is placed on a steel incline table that has a μS of 0.23. How much force must be applied horizontally to the table in order to start the mass moving?
4. A 2 kg mass of steel is placed on a slate table that has a μS of 0.2. How much force must be applied at an angle of 300 to the table in order to start the mass moving? How much force must be applied at an angle of -300
to the table in order to start the mass moving?
5. Please provide a plausible explanation why μS and μK are different.
6. Provide a freebody diagram for each of the following situations. Use this free body diagram to predict what the scale will read. (pictures provided)
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