# physics

You are given a vector in the xy plane that has a magnitude of 94.0 units and a y component of -44.0 units.

A. What are the two possibilities for its component?

For this part I got x = 83.1 and -83.1

B. Assuming the x component is known to be positive, specify the vector V which, if you add it to the original one, would give a resultant vector that is 61.0 units long and points entirely in the -x direction.

This is where I'm stuck. I tried working it out like this:

x^2 + y^2 = r^2
x^2 + (44)^2 = (61)^2
x = 42.25

But it's wrong. Though, I'm sure that the y component for this second vector should be positive 44 to cancel out with the -44 from the first vector to get the third one.

1. 👍
2. 👎
3. 👁
1. You need to add a vector with y component of +44 (to cancel the -44) and an x component of -(83.1 +61) = -144.1.

The equation you are using is not the right one. The vector you add is not the vector you end up with. For the x component, you start with 83.1 and end up with -61.

1. 👍
2. 👎

## Similar Questions

1. ### Physics

The vector sum of two vectors of magnitude 10 units and 15 units can never be A) 28 units B) 22 units C) 18 units D) 8 units

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. ### physics

the magnitude of vector A is 35 units and points in the direction 325 degrees counterclockwise from the positive X-axis. calculate the X and y components of the vector

4. ### 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

1. ### physic

The magnitudes of two vectors vector A and vector B are 20 units and 5 units, respectively. What are the largest and smallest possible values for the magnitude of the resultant vector vector R = vector A + vector B ? largest:?

2. ### PHYSICS

Vector A⃗ points in the negative x direction and has a magnitude of 22 units. The vector B⃗ points in the positive y direction. partA:Find the magnitude of B⃗ if A⃗ +B⃗ has a magnitude of 37 units. partB: Sketch A⃗ and

3. ### Math

Vector u has a magnitude of 5 units, and vector v has a magnitude of 4 units. Which of these values are possible for the magnitude of u + v? I believe there are more than one answers: A: 1 Unit B: 9 units C: 11 Units D: 13 Units

4. ### physics

Vector vector A has a magnitude of 27 units and points in the positive y-direction. When vector vector B is added to vector A , the resultant vector vector A + vector B points in the negative y-direction with a magnitude of 18

1. ### Physics

If vector a has a magnitude of 29 units and points in the positive y direction. when vector b is added to a the resultant is 24 units in the negitive y direction, what is the magnitude of b?

2. ### AP 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. ### physics honors

You are given a vector in the xy plane that has a magnitude of 100.0 units and a y component of -50.0 units (b) Assuming the x component is known to be positive, specify the vector which, if you add it to the original one would

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