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|dw:1381002960366:dw|

to add 2 vectors you need to connect them tip to end

Okay, I got that part but was confused where to go from there

|dw:1381003142681:dw|

Where do I go from there????

drawing part of the question is over,
next calculate mag and direction of a+b

That's the part where I'm stuck!

The mag would be found using pythagorean theorem right?

to add vectors,
u need to break them into components

add the components bro

break vector into x component and y components then add x components and add y components

|dw:1381003391274:dw|

|dw:1381003459892:dw|

Oh okay! So from there, I would use the pythagorean theorem, and for the direction, I would...?

why pythagorean theorem

first find the components of a+b

for the magnitude

x component of a+b = 4.5cos(60) - 8cos(45)
y component of a+b = 4.5sin(60) + 8sin(45)

ringt ?

How do I know what to subtract from what?

number line :)

|dw:1381003731661:dw|

|dw:1381003758234:dw|

Okay!

x component of a+b = 4.5cos(60) - 8cos(45)
y component of a+b = 4.5sin(60) + 8sin(45)

what about mag?

mag also same formula :- \(\large \sqrt{x^2+y^2}\)

a+b is just a vector, so u can use same formulas

That makes as a lot more sense, thank you so much!

(again!)

np :D

@ganeshie8 I get 25 degrees for angle?

looks wrong

|dw:1381004400621:dw|

check ur calculation again :)

ok

The magnitudes is what I'm having trouble with. When I use the formula, I get a decimal answer?

yup !

for mag just take sqrt(x^2+y^2)