Which way is correct and why?

  • #26
273
5
lioric
I could not find any reason to look specifically for any average speed in analyzing and solving the problem. I did not actually finish trying to solve it; maybe in a further step, an expression for average speed may appear, or maybe not. What do you find when you take from the simplified system and solve for x and for y? Does an expression for average speed show?
I know there is no need to use the average speed method.
As I have show in the picture, I have solved the question and found the correct answer.
I just have a tendency to make sense of certain things even if it's not necessary.

The issue is resolved now as you can see from the above posts.
Thank you very much
 

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