Trip Blog Post
My
initial answer for the trip problem was Aà
60km/h. I thought this was definitely the correct answer. I basically just
averaged all the numbers together. Honestly, I didn’t use much of a process to
think of the answer, I just sort of added and divided a couple numbers together
and assumed that the number I got was the right answer.
In
class, however, after talking to my classmates, it was very clear that my
answer was incorrect. It was brought to my attention that I left out the
concept of time completely. One of the formulas I kept in mind to figure out
the answer was;
Velocity= Distance/Time. The goal was for the motorist to go
an average of 40 kilometers per hour. However, they had already gone for an
hour and had averaged only 30 kilometers, therefore, the goal for reaching 40
kilometers per hour would have to be completed in a faster amount of time than
the speed of light which would be virtually impossible.
The
correct answer was Dàfaster
than the speed of light. I solved this by breaking each distance the motorist
traveled into time frames. In the beginning, the motorist went 20 km with an
average speed of 40km/h. The next distance he travels is only 10km averaging
only 20km/h. The goal was for the motorist to go 40km/h in the last 10km. So, I
took all of these factors into considering and used the formula that
velocity=distance/time. I didn’t really use plug anything into that formula,
however, writing it down reminded me to take time into consideration. So, that’s
what I did. I realized that it had already taken the car an hour, therefore,
the time that had been lost had to be made up into the idea that the car would
move faster than the speed of light in order to maintain an average of 40km/h.
At
the beginning, looking at this problem, I was overwhelmed and the first few
times reading over it I just couldn’t comprehend the idea. However, I learned
that if you write all the equations relevant and you write all the numbers and
problems out beneath the question it helps you to organize your thoughts as
well as gain you points.
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