- #1

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I know that to calculate magnitude it is r= sqrt (x1 + x2)2 + (y1 + y2)2.

I also know that k(vector)= 4

I just am confused by the components (so x=2y ....)

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- Thread starter emma3001
- Start date

- #1

- 42

- 0

I know that to calculate magnitude it is r= sqrt (x1 + x2)2 + (y1 + y2)2.

I also know that k(vector)= 4

I just am confused by the components (so x=2y ....)

- #2

rock.freak667

Homework Helper

- 6,230

- 31

now |

so that [itex]4=\sqrt{x^2+y^2}[/itex]...(*)

You are told x=2y...can you use this fact and (*) to help you find x and y now?

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