Homework Help: physics

Posted by Natasha on Sunday, March 11, 2012 at 8:47pm.

Traveling at a speed of 18.5 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.690. What is the speed of the automobile after 1.41 s have elapsed? Ignore the effects of air resistance.

physics - Damon, Sunday, March 11, 2012 at 8:52pm
-m g (.69) = m a
a = - .69 g

v = 18.5 - .69(9.8)(1.41)
physics - Natasha, Sunday, March 11, 2012 at 9:37pm
Thank you

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