A car moving at 50 km/h skids 20 m with locked brakes. How far will it skid if its initial speed is 150 km/h?

Name: A car moving at 50 km/h skids 20 m with locked brakes. How far will it skid if its initial speed is 150 km/h?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

The stopping distance is proportional to the square of the speed. If the speed triples (from 50 km/h to 150 km/h), the stopping distance increases by a factor of 3^2 = 9. Therefore, 20 m * 9 = 180 m.

A Car Moving at 50 Km/h Skids 20 M with Locked