physics

A truck is stopped at a stoplight. When the light turns green, it accelerates at 2.7 m/s2. At the same instant, a car passes the truck going 18 m/s. Where and when does the truck catch up with the car?

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1. Don't they go the same distance in the same time?
distance car= 18*time
distancetruck=1/2 2.7 t^2
set them equal, solve for time.

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bobpursley
2. need answer fast- running out of time

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3. I am not going to do it for you. Why did you wait so late to start it? This is a rather elementary question.

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bobpursley
4. bob, i appreciate your help with questions like these but don't be so harsh on Dylan. My teacher didn't explain this very well and so I think we're both just struggling with this subject.

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5. I worked it out, goodness. you set the two distances equal, and solve for time. it takes two lines of algebra, about 20 seconds. Instead of that, the request was for the answer. Sorry.

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bobpursley

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