Question

I got a very detailed physics problem that I can't get the math right for (posted below)

Answer 1

The original question was "You are driving a car at the 25-mi/h speed limit when you observe the light at the intersection 67 m in front of you turn yellow. You know that at that particular intersection the light remains yellow for exactly 6.0 s before turning red. After you think for 1.0 s, you then accelerate the car at a constant rate. You somehow manage to pass your 4.0 m car completely through the 15.0 m wide intersection just as the light turns red, thus narrowly avoiding a ticket for running a red light. Immediately after passing through the intersection you take your foot off the accelerator, relieved. However, down the road you are pulled over for speeding. You assume you were ticketed for the speed of your car as it exited the intersection. Determine this speed and decide whether you should fight this ticket in court."

Answer 2

And this is how I worked it out, I even diagramed it to scale and I thought my answer seemed reasonable, but my answer is wrong, can anyone help?

Answer 3

Your answer is correct :)

Answer 4

Ok that's what I thought but my online homework keeps marking it wrong :(

Answer 5

Wait, where does the acceleration get taken into account, particularly since that isn't given in my problem...