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prob_042 - 42 REASONING AND SOLUTION The deceleration...

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Unformatted text preview: 42. REASONING AND SOLUTION The deceleration produced by the frictional force is a=– fk m = – µk mg m = – µk g The speed of the automobile after 1.30 s have elapsed is given by Equation 2.4 as v = v0 + at = v0 + ( − µk g ) t = 16.1 m/s − (.720 ) ( 9.80 m/s 2 ) (1.30 s ) = 6.9 m/s ______________________________________________________________________________________ ______ ...
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