A curling stone with a mass of 18 kg slides 38 m across a sheet of ice in 8.0 s before it stops because of friction. What is the coëfficient of kinetic friction between the ice and the stone? (You must start with the equations in your Physics Reference Tables. You may only use the answer to question #4 above as a starting point if you have already solved that problem.)

University Physics Volume 1
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Author:William Moebs, Samuel J. Ling, Jeff Sanny
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Chapter6: Applications Of Newton's Laws
Section: Chapter Questions
Problem 123AP: Two blocks connected by a string are pulled across a horizontal surface by a force applied to one of...
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I need help understanding which equation to use.
A curling stone with a mass of 18 kg slides 38 m across a sheet of ice in 8.0 s
before it stops because of friction. What is the coëfficient of kinetic friction
between the ice and the stone?
(You must start with the equations in your Physics Reference Tables. You
may only use the answer to question #4 above as a starting point if you have
already solved that problem.)
ow nuch force mi
Answer: 0.12
Transcribed Image Text:A curling stone with a mass of 18 kg slides 38 m across a sheet of ice in 8.0 s before it stops because of friction. What is the coëfficient of kinetic friction between the ice and the stone? (You must start with the equations in your Physics Reference Tables. You may only use the answer to question #4 above as a starting point if you have already solved that problem.) ow nuch force mi Answer: 0.12
Expert Solution
Step 1

Frictional force f =-  μ Ν 

negative sign for opposite to motion 

on horizontal surface 

N = mg 

so 

f= - μ mg 

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