Question

vector u has a magnitude of 4 and a direction angle of 30 degrees. write the component form of this vector

Answer 1

Just took this quiz the answer is C.

Explanation:

U=[3.5,2]

Answer 2

For this case we have that the components of the vector u are given by:
u = 4 * (cos (30) i + sin (30) j)
Rewriting we have:
u = 4 * ((root (3) / 2) i + (1/2) j)
u = 2 root (3) i + 2j
Answer:
The component form of this vector is:
u = 2 root (3) i + 2j