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**plz take a look at this...**

Two cars approach an intersection of two perpendicular roads. The velocities of the cars are

**v1**and

**v2**. At the moment when car1 reaches the intersection, the separation distance between the two cars is

**d**. What is the minimum separation distance between the cars during the motion?

it might seem trivial, but i need help so someone who can do this plz show me how to do it?

Thx