Speed Comparison for Different Accelerations · PhysicsBowl 2011 #30

Physics · mechanics

Problem

Two cars travel to the right, each starting from rest, along a straight road. Car A has twice the acceleration of Car B. After traveling a distance dd, Car A has speed vv. When Car B has traveled the same distance dd, what is its speed in terms of vv? (A) v2\frac{v}{2} (B) v2\frac{v}{\sqrt{2}} (C) v3\frac{v}{\sqrt{3}} (D) v1\frac{v}{\sqrt{1}} (E) v2\frac{v}{\sqrt{2}}

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