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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 3.5 kg block is released from a compressed spring whose spring constant is 640N/m. After leaving the spring at the spring’s relaxed length, the block travels over a horizontal surface by a coefficient of friction of 0.25, for distance of 7.8mcoming..
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