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Home Q & A Board Science-Related Homework Help Physics
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haileyrasmussen haileyrasmussen
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6 years ago
A 6.0-kg block slides along a horizontal surface. If k = 0.20 for the block and surface, at what rate is the friction force changing the mechanical energy of the block at an instant when its speed is 4.0 m/s?
 a. -59 W
  b. -47 W
  c. -71 W
  d. -82 W
  e. +71 W
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analucia_reidanalucia_reid
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6 years ago
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haileyrasmussen Author
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6 years ago
Thank you, thank you, thank you!
ouasfoudgewu
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Yesterday
Good timing, thanks!
Mcb
wrote...

2 hours ago
Smart ... Thanks!
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