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The ramp is coated with a substance that has a kinetic coefficient of friction of 0.25. The block is placed at the bottom of the ramp.
1) What initial speed should be imparted to the block so the block travels 5m up the ramp?
2) What should be the value of the static coefficient of friction so that once the block stops it will stay at rest?
A patient with a dislocated shoulder is put into a traction apparatus, How large should these pulls be
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