You are given two vectors, one pointing in the x direction and theother pointing

Question

You are given two vectors, one pointing in the x direction and theother pointing in the y direction.

C is 145 units in the x direction. D is 205 units in the ydirection. Find the E vector so that the sum C+D+E=0.

I've looked all through my book to find out how to do this type ofproblem. I can't seem to find the answer. I know it hassomething to do with sin and cosine but beyond that I'm prettylost. This problem is not found in my textbook.

I need to the units that is measured by some angle counter clockwise.

Explanation / Answer

145î+205j+E=0 E= -145i-205j |E|= Sqroot[(-145)2+(-205)2] |E|= 251

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