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 equation of a circle with a radius of 5 centered at the point (2, -3)?
+
Find the value of x if f(x) = 10^x - e^x, given that the function satisfies the characteristics of an exponential function.
+
What is the limit as x approaches 3 of (3x+1)/(2x-2)?
+
New questions in Mathematics
1 + 1
-6n+5=-13
5(4x+3)=75
Find the equation of the normal to the curve y=x²+4x-3 at point(1,2)
how many arrangement can be made of 4 letters chosen from the 8 letters of the world ABBSOLUTE
By direct proof, how can you prove that “The sum of any three consecutive even integers is always a multiple of 6”.
5.- From the probabilities: 𝐏(𝐁) = 𝟑𝟎% 𝐏(𝐀 ∩ 𝐁) = 𝟐𝟎% 𝐏(𝐀 ̅) = 𝟕𝟎% You are asked to calculate: 𝐏(𝐀 ∪ 𝐁)
If 0101, what is the binary representation of the 4x16 decoder output?
What is 28 marks out of 56 as a percentage
Two business partners have a bank balance of $17,942.00. After the first year their interest brings their balance to $18,928.91. What rate of interest is earned?
suppose random variable x follows poisson distribution with expected value 3. what is variance of x?
Calculate the value of a so that the vectors (2,2,−1),(3,4,2) and(a,2,3) are coplanar.
From 1975 through 2020 the mean annual gain of the Dow Jones Industrial Average was 652. A random sample of 34 years is selected from this population. What is the probability that the mean gain for the sample was between 400 and 800? Assume the standard deviation is 1539
effectiveness of fiscal and monetary policy under closed and open economies
A diamond ring was reduced from $999.99 to $689.99. Find the percent reduction in the price. Round the answer to the nearest tenth of a percent, if necessary.
Calculate the area of the parallelogram with adjacent vertices (1,4, −2), (−3,1,6) 𝑦 (1, −2,3)
What is the total amount due and the amount of interest on a 3-year loan of $1,000 at a simple interest rate of 12% per year?
22. Let [AB] be a chord in a circle C, and k a circle which is internally tangent to the circle C at a point P and to the chord [AB] at a point Q. Show that the line P Q passes through the midpoint of the arc AB opposite to the arc APB.
5a-3.(a-7)=-3
f(x)= 9-x^2 find (f(x+h)-f(x) )/h