# Physics

You are given a vector in the xy plane that has a magnitude of 70.0 units and a y component of -55.0 units. What are the two possibilites for its x component? Please explain, thanks! :)

1. 👍 0
2. 👎 0
3. 👁 146
1. x^2=70^2-55^2

x= +- sqrt above.

1. 👍 0
2. 👎 0
👨‍🏫
bobpursley
2. Thanks so much! I should have thought of the pythagorean therom, but why x^2=70^2-55^2 rather than x^2+(-55^2)=70^2?

1. 👍 0
2. 👎 0
3. They both are the same thing. Solve for x^2 in your equation...

1. 👍 0
2. 👎 0
👨‍🏫
bobpursley

## Similar Questions

1. ### 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

2. ### 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

3. ### 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

4. ### 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

1. ### wits

Vector A has magnitude of 75 units and points in the positive x direction.vector C = A+B points points in the y direction and has magnitude of 95m.(a) sketch vector A; B & C. (b) Estimate the magnitude & direction of vector B. (c)

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

1) The vector sum of three vectors gives a resultant equal to zero. what can you say about the vectors? 2) Vector is 3.00 units in length and points along the positive x-axis. Vector is 4.00 units in length and points along the

4. ### Physics

A vector has magnitude 58.0 units and is inclined to the positive axis of x at 42.0°. Vector has magnitude 36.0 units and is inclined to the positive axis of x at 121°. Vector has magnitude 40.0 units and is inclined to the

1. ### 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

2. ### Physics

An air traffic controller observes two airplanes approaching the airport. The displacement from the control tower to plane 1 is given by the vector A , which has a magnitude of 220 km and points in a direction 32 degrees north of

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. ### 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