(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

two cars are traveling along a straight road, one behind the other. the first is traveling at a constant velocity of 12 m/s. the second, approaching from the rear, is traveling at 25 m/s. when the second car is 200m behind the first, the driver applies the brakes, producing a constant acceleration of -0.20 m/s^2. will the cars crash and if so, where and when?

2. Relevant equations

acceleration = (change in velocity)/(change in time)

change in dispacement = (Initial velocity) (time) + (1/2) (acceleration) (time sqaured)

velocity = (acceleration) (time)

3. The attempt at a solution

i got they woud crash after 50 meters? but i dont think thats right :(

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# Homework Help: Physics word problem- velocity, acceleration, time

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