You testify as an "expert witness" surrounded by a valise involving an chance contained by which sports car A slid into the flipside of coup¨¦ B,

(a) With what speed did car A hit saloon B if the coefficient of kinetic friction was 0.60 (dry road surface)?
m/s
(b) What be the speed if the coefficient of kinetic friction was 0.10 (road surface covered next to wet leaves)?
m/s

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Answers:    b be to close

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