Ac3
  • Ac3
The two vectors a with arrow and b with arrow in the figure below have equal magnitudes of 11.7 m and their angles are θ1 = 30° and θ2 = 106°. (a) Find the x and y components of their vector sum r with arrow. (Express your answer in vector form.) (b) Find the magnitude of r with arrow. (c) Find the angle r with arrow makes with the positive x axis
Physics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
Ac3
  • Ac3
a and b*
Ac3
  • Ac3
1 Attachment
anonymous
  • anonymous
|dw:1442290286516:dw|

Looking for something else?

Not the answer you are looking for? Search for more explanations.

More answers

anonymous
  • anonymous
Vector form is i and j, i represent x direction j represent y direction. like 5i+6j is 5 coordinates to the right and 6 to the north. -5i-6j would be 5 coordinate to the left and 6 to the south.
Ac3
  • Ac3
what are the scalars for i and j of the resultant?
Ac3
  • Ac3
I know how to do this but keep getting the wrong answer for some reason.
anonymous
  • anonymous
|dw:1442290582101:dw|
anonymous
  • anonymous
Angle 1 and 3 are corresponding angles so they are the same. Subtract 180 degrees from the (angles of 2 and 3) to get angle 5.
anonymous
  • anonymous
|dw:1442290969817:dw|
anonymous
  • anonymous
cos30=x/11.7 so 11.7cos30=x You would get the x component for vector A sin30=y/11.7 so 11.7sin30=y You would get the y component for Vector B
anonymous
  • anonymous
Now try to get the x and y component for vector B. After you get both, you would add the x component of vector A and B together to get the displacement or resultant x component. Then do the same to get the resultant vectors y component.
Ac3
  • Ac3
That's the one I'm having trouble with Vector B
Ac3
  • Ac3
For vector A we can definitely do what you said, but not for vector B because it has a 106 degree angle.
Ac3
  • Ac3
Either that or my calculator is stupid.
Ac3
  • Ac3
ok so 164
Ac3
  • Ac3
ahhhh i see
anonymous
  • anonymous
Take that back.
Ac3
  • Ac3
I got -1.1 for the I of the resultant
Ac3
  • Ac3
Then what is it?
anonymous
  • anonymous
Nevermind, it works.
Ac3
  • Ac3
What do you get for the i and j values of the resultant?
anonymous
  • anonymous
How did you get 164 if you add 90 angles to angle 5?
Ac3
  • Ac3
angle 5 is 74
Ac3
  • Ac3
5,3 and 2 must add up to 180
anonymous
  • anonymous
Show me your math.
anonymous
  • anonymous
On how you get 74
Ac3
  • Ac3
Actually I can't even remember how I got to 74 now that I think of it.
anonymous
  • anonymous
180-30-106=?
Ac3
  • Ac3
oh yea 180=106
Ac3
  • Ac3
180-106
anonymous
  • anonymous
180=106?
anonymous
  • anonymous
Thats only 2. You wrote angle 5,3,2 must add up to 180.
Ac3
  • Ac3
nvm on that.
Ac3
  • Ac3
5, and 2 must add up to 180
anonymous
  • anonymous
You were right on that. And I said your 74 degrees on angle 5 is wrong. Look at my drawings again.
anonymous
  • anonymous
|dw:1442292054233:dw|
anonymous
  • anonymous
|dw:1442292116154:dw|
Ac3
  • Ac3
then how do i find 5 and 2?
anonymous
  • anonymous
Look at your problem and information, not given by me.
Ac3
  • Ac3
That picture plus the words are the only information.
anonymous
  • anonymous
What is angle 3?
Ac3
  • Ac3
30
Ac3
  • Ac3
that doesn't help
anonymous
  • anonymous
and how do you know it is 30 degrees. Wait up and you will see ok?
Ac3
  • Ac3
It's a geometry rule.
anonymous
  • anonymous
And how did you know angle 1 is 30 degrees?
anonymous
  • anonymous
Hint: information
anonymous
  • anonymous
So what is angle 2?
anonymous
  • anonymous
|dw:1442292824398:dw|
Ac3
  • Ac3
I have no idea
Ac3
  • Ac3
oh is that the 106?
Ac3
  • Ac3
Ok so I figured that out angle 5 is 44
anonymous
  • anonymous
But how did you know angle 1 is 30 degrees? Please reread. -_-
Ac3
  • Ac3
It's a given
anonymous
  • anonymous
Yes it is 44
anonymous
  • anonymous
Whenever there is an angle that is not 0 or 90 or 180 degrees, I do not just assume the angle number. It has to be given by the information.
anonymous
  • anonymous
I cant just guess that angle 1 is 30 degrees without info.
Ac3
  • Ac3
angle 1 is 30 that's a given.
anonymous
  • anonymous
Yes, so you should have no trouble knowing what angle 2 is. Always read your question and information carefully. It helps a lot in physics.
anonymous
  • anonymous
If I dont know what angle 2, I would not figure out how to do this.

Looking for something else?

Not the answer you are looking for? Search for more explanations.