Finding the Resultant of Vectors C & D

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SUMMARY

The discussion focuses on calculating the resultant vector R from two vectors C and D using their X and Y components. The resultant is determined by applying the Pythagorean theorem, where R is calculated as R = √(Rx² + Ry²). Additionally, the direction of the resultant vector is found using the tangent function, tan(θ) = Ry/Rx, and the components can be expressed in terms of the angle using x = r cos(θ) and y = r sin(θ).

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i was given a graph and was told the find the X and Y components of the 2 vectors (C and D) and their Resultant R. i found the x,y components easily. now do i use the pythagorean theorem to find the resultant of C and D. and is that the answer? thanks ~Dave
(i have a graph, but it was too big to attach)
 
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suppose u have The net X & Y component Rx & Ry

Then u have
R= Rx i + Ryj
where i & j are unit vectors along x and y axis

So the net resultant would have magnitude given by Pythagoras TH i.e

R2 = Rx2 + Ry2

and direction tan(\theta)=Ry/Rx

Pls Note While calculating the angle
 
yes,

and don't forget

x=r cos(angle)
y=r sin(angle)

Nautica
 

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