# Physics

Given Vector A with magintude 9.17 feet and Vector B with magnitude of 10.58 feet, what is the resultant of the two vectors added together?

Answer: I know it would depend on the direction of the vector. If in the same line we would add them or if opposite lines we would subract them, and if at right triagle we would us the pyth theorm. I don't know how to determine the direction of the vector's here. I assume that they might be in the right triangle but am not sure. In that case aË†2 + bË†2 = cË†2. So it would be (9.17)Ë†2+(10.58)Ë†2=196.0253. Can someone help me with this please?

Without the angle between the vectors, you cannot calculate the magnitude of the resultant. Thay must have provided information about that angle when the problem was assigned.

In general, when adding two vectors, use the rule

c^2 = a^2 + b^2 + 2 ab cos C

where c is the the magnitude of the resultant, and and b are the magnitudes of the two vectors being added, and C is the angle that vector b deviates from the direction of vector a, when lined up head-to-tail.

So with the info provided in the question, you are saying there is no answer to this question as it is not giving us enough info?

That is the reality.

why are there such things as physics its so and i hate it

1. 👍
2. 👎
3. 👁
1. I had the same question, and I put the answer as 19.17ft for the sum of the magnitudes, which was not right. Nor is using the pyth theorem give you the correct answer. From that, I would assume the 2 vectors with the respective magnitudes are pointing in different directions on a linear plane (although it is not given in the question) therefore you would have to find the difference in the magnitudes to get your answer. That is my assumption.

1. 👍
2. 👎

## Similar Questions

1. ### Calculus and vectors

Vector AB is a vector whose tail is at (-4,2) and whose head is at (-1,3). Calculate the magnitude of vector AB Determine the coordinates of point D on vector CD, if C (-6,0) and vector CD= vector AB. Please I need some help. Is

2. ### physics

Vector A has a magnitude of 8.00 units and makes an angle of 45.0° with the positive x-axis. Vector B also has a magnitude of 8.00 units and is directed along the negative x-axis. Using graphical methods, find (a) the vector sum

3. ### Vectors/Magnitude

The vector v has a magnitude of 89.7 feet and a direction of 12(degree sign)48'. find the magnitude of its vertical component a: 887.47 ft b: 19.87 ft c: 19.38 ft d: 87.58 ft

4. ### Physics

1. Two points in a plane have polar coordinates (2.5 m, 30 degrees) and (3.8 m, 120 deg). Determine (a) the cartesian coordinates of both points and (b) the distance between the points. 2. Vector A has magnitude 29 units and

1. ### physics

i don't see this in my book in a coordinate system, a vector is oriented at angle theta with respect to the x-axis. The y component of the vector equals the vector equals the vector's magnitude multiplied by which trigonometric

2. ### Math/Physics

Given the following vectors, where Vector A is 6.3 meters and Vector B is 3.5 meters, determine the magnitude of the following vector sums: A+B, A-B, B-A I tried to do magnitude such as A+B = square root (6.3)^2+(3.5)^2 = 7.2 then

3. ### Vectors

Explain why it is not possible for Vector a • (Vector b • Vector c) to equal (Vector a • Vector b) • Vector c . (This means that the dot product is not associative.)

4. ### Vectors

Verify using an example that Vector a + (Vector b • Vector c) is not equal to (Vector a + Vector b) • (Vector a +Vector c). (This means that addition does not distribute over the dot product.) Explain the problem that arises.

1. ### physics

Which of the following statements is a true statement? A. A vector can have positive or negative magnitudes. B. A vector's magnitude cannot be more than the magnitude of one of its components. C. If the x-component of a vector is

2. ### Dot Product

Verify using an example that Vector a • (Vector b • Vector c) = (Vector a • Vector b) • Vector c is not true. Explain your reasoning both numerically and by using the definition of the dot product. I am very confused as to

3. ### math vectors

Use a specific example to prove that the cross product is also not associative. That is, use three specific vectors in 3-space to show that Vector a×(Vector b × Vector c) is not equal to (Vector a × Vector b) × Vector c. Can

4. ### Physics

In a coordinate system, a vector is oriented at angle theta with respect to the x-axis. They y component of the vector equals the vector's magnitude multiplied by which trig function? ... please explain