Given ||v|| = 5 theta=30 degrees, write the vector v.

Answer 1

u = 5 cos 30
v = 5 sin 30
so
V = 5 cos 30 i + 5 sin 30 J

of course cos 30 = sqrt 3 /2
and sin 30 = 1/2
so
V = (5 sqrt 3) /2 i + (5/2) j