# Physict

This question is similar to some on driver's-license exams: A car moving at 50 km/h skids 15 m with locked brakes. Show that with locked brakes at 150 km/h the car will skid 135 m.

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1. d = d1(V2/V1)^2 = 15(150/50)^2 = 135 m.

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