# Subtracting Vectors Lengths

Not what you're looking for?

"The figure below (please see attached Word file) shows three vectors of lengths

A = 67.8, B = 39.5, and C = 47.0.

The angles are theta(a) = 28.8°

and theta(b) = 54.5°, and C points along

the negative y-axis. Determine the length of the vector A - C."

The book indicates that the equation for subtraction of vectors is simply "vector 2 - vector 1." But when I try that for this problem, I don't obtain the right answer (it's neither 20.8, nor -20.8). Can you show me how to do this problem?

Thank you!

##### Purchase this Solution

##### Solution Summary

The expert determines the length if the vectors. Negative y-axis on graphs are found.

##### Solution Preview

see attached file

The figure below shows three vectors of lengths

A = 67.8, B = 39.5, and C = 47.0.

The angles are thetaa = ...

##### Purchase this Solution

##### Free BrainMass Quizzes

##### Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

##### The Moon

Test your knowledge of moon phases and movement.

##### Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.

##### Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

##### Basic Physics

This quiz will test your knowledge about basic Physics.