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October 20, 2014

October 20, 2014

Posted by **marissa** on Monday, October 24, 2011 at 8:01pm.

- physics -
**Keith**, Monday, June 18, 2012 at 9:49pmYou have four vectors.

For each one resolve them into North and east components.

Adding the North components.

N= 75 + 0 + 125 sin(30) - 150 = - 12.5 m

And adding the east components we get

E = 0 + 250 + 125 cos(30) + 0 = 358.25

The magnitude of the result is found by Pythagoras' theory

C = sqrt (a^2 + b^2)

= 358 m to three significant figures.

And the angle is south of east.

found by arctan (12.5/358.25)

= 2 degrees south of East.

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