Math

Add the following vectors using trigonometry (i.e. cosine and sine laws). 9 N on a heading of [S2°W] and 11 N on a heading of [N31°W].?

  1. 👍 0
  2. 👎 0
  3. 👁 236
  1. [S2°W] ---> 268°
    [N31°W] ---> 121° in standard trig notation

    Resultant = 9(cos268° , sin268°) + 11(cos 121°, sin 121°)
    = .....

    1. 👍 0
    2. 👎 1
  2. All angles are measured CCW from +X-axis
    Fr = 9N[268 ]+ 11N[121o].
    X = 9*Cos268 + 11*Cos121 =
    Y = 9*sin268 + 11*sin121 =

    Fr = sqrt(X^2 + Y^2).
    TanA = Y/X.

    1. 👍 0
    2. 👎 1

Respond to this Question

First Name

Your Response

Similar Questions

  1. MATH

    Add the following vectors using trigonometry (i.e. cosine and sine laws). 9 N on a heading of [S2°W] and 11 N on a heading of [N31°W].

    asked by Anonymous on September 3, 2018
  2. MATH

    Add the following vectors using trigonometry (i.e. cosine and sine laws). 9 N on a heading of [S2°W] and 11 N on a heading of [N31°W].

    asked by Anonymous on September 4, 2018
  3. Summer School Calculus

    Another one for you :P, add these two vectors using trigonometry (again)... 9N[S2W] and 11N[N31W]...Again, I am confused about the angles, I am not sure what value I should use for the cosine and sine law. THANKS AGAIN!!

    asked by Derek on June 29, 2008
  4. CALCULUS

    How do I do this: add the following vectors , 7m/s [N30E] and 2m/s [S17E] I know that you must use trigonometry and break stuff up into components and use sine and cosine law; just not sure how. Thanks!

    asked by Casey on June 28, 2008
  5. Summer School Calculus

    Add the following vectors , 7m/s [N30E] and 2m/s [S17E], using trigonometry. Once you draw these out into diagrams, you use the triangle law yes? How do you find the angles to use in the cosine and sine law? A little confused,

    asked by Derek on June 28, 2008
  1. Geometry

    The word cosine literally means "the complement of the sine." Write a paragraph explaining how complements of sine and cosine are connected. I know that the sine and the cosine of complementary angles are the same. but how can i

    asked by Helen on April 15, 2014
  2. maths

    Sine and Cosine rule are both used in solving trigonometry problems.Give an example of when the cosine rule is more appliciable than the sine rule?

    asked by Shane on September 1, 2013
  3. Algebra2---

    1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth. a=4.2 cm b= 5.7 cm measure angle A= 39

    asked by Anonymous on April 18, 2013
  4. Algebra 2 ..

    1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth. a=4.2 cm b= 5.7 cm measure angle A= 39

    asked by Anonymous on April 18, 2013
  5. Algebra 2....

    1. An artist is designing triangular mirrors. Determine the number of different triangles that she can form using the given measurements. Then solve the triangles. Round to the nearest tenth. a=4.2 cm b= 5.7 cm measure angle A= 39

    asked by Anonymous on April 17, 2013

More Similar Questions