Posted by **Hannah** on Wednesday, May 16, 2012 at 9:51pm.

Two vectors have magnitudes 4m and 3m. Which choice is not a possible magnitude for their resultant?

3m, 1m, 7m, 12m

I chose 12m. Is this correct?

- Physics(Please check thanks) -
**Count Iblis**, Wednesday, May 16, 2012 at 9:57pm
Correct, this follows from the triangle inequality. For two vectors x, and y, you have:

|x+y| <= |x| + |y|

- Physics(Please check thanks) -
**Hannah**, Wednesday, May 16, 2012 at 10:03pm
Thank you!

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