If the drag force on a car is F at a moderate highway speed v,at what speed would the drag force be doubled?
A) 1.2v
B) 1.4v
C) 1.7v
D) 2.0v

Name: If the drag force on a car is F at a moderate highway speed v,at what speed would the drag force be doubled? A) 1.2v B) 1.4v C) 1.7v D) 2.0v
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Question

Quizplus · Accepted Answer

The drag force is proportional to the square of the speed (F ∝ v²). To double the drag force, the speed must be increased by a factor of √2, which is approximately 1.4.

If the Drag Force on a Car Is F at a Moderate