6. A loaded 425 kg toboggan is traveling on smooth horizontal snow at 5.40 m/s when it suddenly comes to a rough region. The region is 8.00 m long and reduces the toboggan's speed by 1.50 m/s. (a) What average friction force did the region exert on the toboggan?  (b) What is the coefficient of kinetic friction between the toboggan and surface ?

Physics for Scientists and Engineers: Foundations and Connections
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ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter5: Newton's Laws Of Motion
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Problem 63PQ: A 75.0-g arrow, fired at a speed of 110 m/s to the left, impacts a tree, which it penetrates to a...
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6. A loaded 425 kg toboggan is traveling on smooth horizontal snow at 5.40 m/s when it suddenly comes to a rough region. The region is 8.00 m long and reduces the toboggan's speed by 1.50 m/s.

(a) What average friction force did the region exert on the toboggan? 

(b) What is the coefficient of kinetic friction between the toboggan and surface ?

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