josephmcintosh4709 josephmcintosh4709
  • 24-01-2020
  • Mathematics
contestada

If v lies in the first quadrant and makes an angle π/3 with the positive x-axis and |v| = 4, find v in component form.

Respuesta :

pedrocarratore
pedrocarratore pedrocarratore
  • 24-01-2020

Answer:

v = <2, 2√3>

Step-by-step explanation:

Let v be the vector of form <x,y>

Since its determinant is |4|, then:

[tex]x^2 +y^2 =4^2=16[/tex]

If it makes a π/3 angle with the positive x-axis, then the tangent relationship yields:

[tex]tan(\pi/3) = 1.732=\frac{y}{x}\\3x^2=y^2[/tex]

Replacing in the first equation:

[tex]x^2 +3x^2 =16\\x=2\\y=\sqrt{16-4}\\ y=2\sqrt 3[/tex]

Therefore, v can be represented in component form as v = <2, 2√3>.

Answer Link

Otras preguntas

Cuento "el crimen casi perfecto" ¿Podrian explicar la siguiente frase del detective?"el suicidio de la señora Stevens me preocupaba (diré una enormidad) no poli
An atom is made of 16 protons, 17 neutrons, and 18 electrons. What is the mass number of this atom?
What’s the right answer?
whichi is in the simplest form. 25/30 9/21 3/17 4/16​
Solve and type in a different form by using the given theorems of logarithms. log10 Mk =
Need help what is. 2 (3x - 5) = 6x - 4
Which event gave President Johnson the support he needed to push for passage ofthe Voting Rights Act?A.March on Washington for Jobs and Freedom B.Project CC.Mon
PLEASE HELP!!!How are middle latitude cyclones and tropical cyclones different from each other?
Solve by completing the square 6x-x^2-7
Hints- A net is folded at shared edges. Visualize the folding of each shared edge to meet an opposite edge. PLEASEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE