Asked by Anne

A car is being driven along a country road on a dark and rainy night at a speed of 20 m/s. The section of road is horizontal and straight. The driver sees that a tree has fallen and covered the road ahead. Panicking, the driver locks the breaks at a distance of 20m from the tree. If the coefficient of friction between the wheels and road is 0.8, at what speed does the car crash into the tree?
Answered by drwls
(Friction force)*(braking distance) = K.E. reduction

Solve for the final kinetic energy and get the final V from that.
Answered by Henry
post it.
Answered by balls
dfdf
Answered by monika
a car with mass mass of 1875 is traveling along a countr
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