# physics

The coefficient of kinetic friction for wood on wood is o.55. The coefficient of kinetic friction for wood on wood is 0.68. For a 3.5kg wood block being pulled horizontally:
a. what is the pull force needed to start the wood block moving on a wood floor?
b. how hard would you need to pull to keep it sliding at a constant velocity on a wood floor?

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2. 👎
3. 👁
1. suspect STATIC is 0.68
.68 m g = starting Force
.55 m g = constant velocity Force

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