Vector A has y - component Ay = +12.0m A makes an angle 32.0 degrees counterclockwise from the + y - axis.

How do you do this more likely how do you draw this.

What is the x-component of vector A?

What is the magnitude of vector A?

Printable View

- October 1st 2012, 03:51 PMOldspice1212More vecs lol (I suck)
Vector A has y - component Ay = +12.0m A makes an angle 32.0 degrees counterclockwise from the + y - axis.

How do you do this more likely how do you draw this.

What is the x-component of vector A?

What is the magnitude of vector A? - October 1st 2012, 05:22 PMOldspice1212Re: More vecs lol (I suck)
Edit: the questions it was asking

- October 1st 2012, 05:39 PMProve ItRe: More vecs lol (I suck)
So draw your Cartesian axes, and draw a vector that makes an angle of 32 degrees counterclockwise from the positive y axis. Make it so that it reaches up as high as 12 units on your y axis. Can you see the right angle triangle? Can you use trigonometry to evaluate the horizontal distance (x component) and the hypotenuse (magnitude)?

- October 1st 2012, 05:50 PMHallsofIvyRe: More vecs lol (I suck)
First, since the angle is "counterclockwise from the positive y axis", the x component will be negative. Ignoring the sign, you have a right triangle with angle 32 degrees, "near side" of length 12, and "opposite side" of unknown length x. "Tan= Opposite side over near side" gives x/12= tan(32).

- October 1st 2012, 05:56 PMOldspice1212Re: More vecs lol (I suck)
For Ax I got 10.64m, is this right?

- October 1st 2012, 05:58 PMProve ItRe: More vecs lol (I suck)
- October 1st 2012, 06:00 PMOldspice1212Re: More vecs lol (I suck)
Lol I just saw it, I got 7.5m for x.

- October 1st 2012, 06:01 PMProve ItRe: More vecs lol (I suck)
- October 1st 2012, 06:02 PMOldspice1212Re: More vecs lol (I suck)
-7.5?!

- October 1st 2012, 06:06 PMProve ItRe: More vecs lol (I suck)
Correct (to one decimal place at least) :)

Now try evaluating the hypotenuse, which is the magnitude of your vector... - October 1st 2012, 06:07 PMOldspice1212Re: More vecs lol (I suck)
10.60 :3

- October 1st 2012, 06:09 PMProve ItRe: More vecs lol (I suck)
- October 1st 2012, 06:10 PMOldspice1212Re: More vecs lol (I suck)
I'm sick I wasn't thinking, it's 14.15

- October 1st 2012, 06:11 PMProve ItRe: More vecs lol (I suck)
- October 1st 2012, 06:16 PMOldspice1212Re: More vecs lol (I suck)
I love you, can I call you the riddler?