Posted by **carak** on Sunday, July 22, 2012 at 7:20pm.

At the instant a traffic light turns green, an automobile that has been waiting at an intersection starts moving forward with a constant acceleration of 2.00m/s(squared). At the same time a truck traveling with a constant speed of 18m/s, overtakes and passes the automobile.

1.How for beyond the starting point does the automobile overtakes the truck?

2.How fast is the automobile traveling when it overtakes the truck?

Someone please help me with this question!!!

- Physics -
**bobpursley**, Sunday, July 22, 2012 at 7:28pm
They both go the same distance, in the same time.

distancetruck=18(t)

distance car=1/2 *2*t^2

set them equal, solve for time t.

How far? 18t

how fast auto? 2*t

- Physics -
**clarke**, Tuesday, July 31, 2012 at 6:27pm
How woukd you graph the position of each vehicle as a function of time.(0 being the traffic light)

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