# The two cars

Calculus Level 3

Two cars $$A$$ and $$B$$ are in the vertex of two highways, forming an angle of $$60°$$. The car $$A$$ goes straight at a constant velocity of $$25 m/s$$. After $$15$$ seconds, the car $$B$$ starts at a constant acceleration of $$4 m/s^2$$. Find the velocity (in $$km/h$$) in which the two cars separate after $$25$$ seconds the first car started.

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