Two children are playing with a pair of wind-up toy cars. The children sit 2.5 meters apart and release
the two cars from rest heading towards each other on a collision course. One car accelerates at a rate
of 2.5 cm/s and the other car accelerates at a rate of 3.5 cm/s. How long after they are released will
the two cars collide?
(a) 0.91 s
(b) 1.6 s
(c) 2.5 s
(d) 6.5 s
(e) 9.1 s

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i know how to solve for my a,v,vo,r,ro,t, but i just forgot how to relate the two cars together.

I would assume that you would have to put them equal to each other for the final positions

Since they will meet up at a certain point so at that point their positions are the same

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