Wednesday, September 12, 2012

Trip Blog Post

My first answer wasnt really an answer. I had tried to plug in 80km/h in my equation. I saw that they went 20km at 40km/h. I also saw they went 10km at 20km/h. Both of those intervals took 30 minutes a piece. That meant that an hour had already passed. The goal was to reach 40km and average a pace of 40km/h which wouldnt be possible if you had already been gone for and hour. My first thought was not the correct answer. I looked back and saw the amount of time needed and the average rate they wanted to achieve. The correct answer is faster than the speed of light. I split the question up into 3 sections. The time it took at 40km/h, the time it took at 20km/h, and the amount of time it would take at X km/h. Another formula is speed=distance/time. This formula allowed me to get 30 minutes for each interval. I then went back and read and it said that they wanted to go 40km and average a rate of 40km/h. This made me think. How would it be possible to average 40km/h for 40km if an hour had already passed. This then took me to my answer of faster than the speed of light. That is the only way to make it in that hour. I learned that sometimes the answer that sounds ridiculous can still be possible and that i need to keep an open mind about all possibilities.

1 comment:

  1. Good job of explaining what went on in your head while solving the problem. It sounds like we both tried to find an average at first. You split your problem into three section and I didn't. Why did you try to plug in 80 km/h at the beginning? Good job!

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