# Vector A, |A| = 44m @ 28° to + x-axis, and Vector B, |B| = 26.6m @ 124° to the + x-axis. Determine the magnitude and direction of R = B - 2A ??

##### 1 Answer

Magnitude

Direction

**2 .d.p.**

#### Explanation:

I will do this problem using unit vectors:

We know the magnitude of

Given that we can look at the magnitude of the vector as being the hypotenuse of a right triangle we know that for a vector

We need to pay attention to which quadrant we are in, so we know were values will be positive or negative:

For

For

Direction:

Because the signs of the components of **III** quadrant, so: