Question

What is the y-component and magnitude of a vector 𝑎 located in the xy-plane if its direction is 230° counterclockwise rotation movement measured from positive x and if its x component is - 6.5 m?

77

likes
385 views

Answer to a math question What is the y-component and magnitude of a vector 𝑎 located in the xy-plane if its direction is 230° counterclockwise rotation movement measured from positive x and if its x component is - 6.5 m?

Expert avatar
Jayne
4.4
106 Answers
Para encontrar la componente y y la magnitud del vector 𝑎, primero debemos descomponer el vector en sus componentes x e y utilizando la información dada sobre la dirección del vector y su componente x.

Dado que la dirección del vector es 230° en sentido contrario al movimiento de giro de las manecillas del reloj medido desde el eje x positivo, podemos determinar la componente x y la componente y utilizando trigonometría.

La componente x del vector se puede encontrar utilizando la función coseno, y la componente y se puede encontrar utilizando la función seno, como sigue:

Componente x:
a_x = |a| \cdot \cos(\theta)
a_x = |-6.5| \cdot \cos(230^\circ)
a_x = -6.5 \cdot \cos(230^\circ)

Componente y:
a_y = |a| \cdot \sin(\theta)
a_y = |-6.5| \cdot \sin(230^\circ)
a_y = -6.5 \cdot \sin(230^\circ)

Ahora podemos calcular las componentes y la magnitud del vector:

a_x = -6.5 \cdot \cos(230^\circ) \approx -6.5 \cdot 0.7660 \approx -4.971\, m
a_y = -6.5 \cdot \sin(230^\circ) \approx -6.5 \cdot (-0.6428) \approx 4.178\, m

La magnitud del vector 𝑎 se puede calcular utilizando el teorema de Pitágoras:
|a| = \sqrt{a_x^2 + a_y^2}
|a| = \sqrt{(-4.971)^2 + (4.178)^2}
|a| = \sqrt{24.71 + 17.43}
|a| \approx \sqrt{42.14}
|a| \approx 6.49\, m

Por lo tanto, la componente y del vector es 4.178 m y la magnitud del vector es 6.49 m.

\textbf{Respuesta:} La componente y del vector es 4.178 m y la magnitud del vector es 6.49 m.

Frequently asked questions (FAQs)
What is the square root of 144 divided by the square root of 9?
+
What is the sum of all even numbers from 1 to 100?
+
Math question: Evaluate the limit of (sin x)/(x) as x approaches 0 using L'Hospital's Rule.
+
New questions in Mathematics
calculate the derivative by the limit definition: f(x) = 6x^3 + 2
10! - 8! =
8x-(5-x)
7273736363-8
1. Suppose we have a good whose quantity supplied changed from 100 to 120 units when the price increased from $10 to $12 per unit. Compute the price elasticity of supply using the midpoint method
An integer is taken at random from the first 40 positive integers. What is the probability that the integer is divisible by 5 or 6?
-0.15/32.6
Solve this mathematical problem if 3/5 of a roll of tape measures 2m. How long is the complete roll?
Emma is on a 50 m high bridge and sees two boats anchored below. From her position, boat A has a bearing of 230° and boat B has a bearing of 120°. Emma estimates the angles of depression to be about 38° for boat A and 35° for boat B. How far apart are the boats to the nearest meter?
4x + 8y = 5 2x + 4y = 10
In the telephone exchange of a certain university, calls come in at a rate of 5 every 2 minutes. Assuming a Poisson distribution, the average number of calls per second is: a) 1/8 b) 1/12 c) 1/10 d) 2/5 e) 1/24
A storage maker price is $2.50 per square feet. Find the price of a custom shed 4 yards long, and 5yards wide and 8 feet tall
P(Z<z)=0.1003
A function is considered exponential when it has a base with positive values greater than zero and different from one, where the exponent is an unknown. An important characteristic of exponential functions is that they show rapid growth or decay as an independent variable increases or decreases. Given the function 25^(x+3)=125, it is calculated that x has the value of
9 x² + 2x + 1 = 0
Show work on 4108 divided by 4
For what values of m is point P (m, 1 - 2m) in the 2⁰ quadrant?
How many cards do you expect to pull from a poker deck until you get an ACE?
Gender and communication : Answer the question ( 1 paragraph is ok) . Please can you write about women? Compared to your other identities, how much of a role does gender play in your life? And has your own sex/gender offered you privileges or disadvantages? How so?
Let I be an interval and let f : I → R be a continuous function such that f(I) ⊂ Q. Show (in symbols) that f is constant.