ShmoopTube

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Thank you We sneak and here's your shmoop too sure

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brought to you by shuffleboard it's fun to play and

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equally fun when older people call us the w word

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whipper snapper all right shuffle boards a sport typically played

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by retirees on cruise ships Grandpa shmoop stands at one

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end of a narrow lane A grid with various scores

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is located at the other end He uses a broom

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to push a pot called a biscuit down the lane

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If grandpa shmoop gives the four kilogram biscuit an initial

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speed of five meters per second and the biscuit comes

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to rest after ten meters what is the coefficient of

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friction between the biscuit and the court And here the

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potential answers All right well this could get complicated if

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we let it The biscuit starts off with kinetic energy

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and kinetic energy equals one half mass times velocity square

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The coefficient of friction then goes to work on the

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puck taking that kinetic energy away Well looks like this

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is a job for the work energy the're Um the

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work energy tour means that the work done by a

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force becomes the kinetic energy of the object of forces

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working on here's The equation In this case the biscuit

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is losing energy so the changing kinetic energy is negative

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and the work is negative as well So in our

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question here the work done by friction is equal to

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the change in kinetic energy Equation For the force of

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kinetic friction is mass times gravity times that coefficient And

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since we're working here we have to include displacement represented

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by x Well now we can solve for the coefficient

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you and we can see that as we solve this

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equation we don't actually use the objects mass It cancels

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itself out Coefficient mu equals velocity squared divided by two

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tons Gravity times displacement So when we plug in those

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numbers we get an answer of one eighth So option 00:02:02.49 --> [endTime] a Yeah that's it that's the correct answer

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