Question

21. Create a unit vector pointing in positive y-axis. Now add to this another unit vector that makes
30° from first vector towards right side on the page. Calculate the resultant vector.​

Answer 1

Answer:

Explanation:

no idea , mate try it yourself

Answer 2

Answer:

(0.5i, $\sqrt{3} +2 / 2$j)

Explanation:

Let angle in the positive y-axis be 90 degrees. We know that a unit vector always has a magnitude of 1 unit. So breaking it down into 'i' and 'j' components we get the following vector:

vector1 = (0i, 1j)

Now, we move 30 degrees to the right and get and angle of 60 degrees.

Applying the same method to get vector components we get:

vector2 = (0.5i, $\sqrt{3} / 2$j)

resultant vector  = vector 1 + vector2

resultant vector  = (0.5i, $\sqrt{3} +2 / 2$j)

magnitude can be further be found out using:

$\sqrt{x^2 + y^2}$

Hope that helps.