**1. The problem statement, all variables and given/known data**

Attached

**2. Relevant equations**

Attached

**3. The attempt at a solution**

Attached. Couple of questions/confirmations:

it should be vbcos(45)i – vbsin(45)j, but this is the same thing as cos(45)=sin(45)

vb should be directed at B

How do you solve equations 1 and 2? Trial and error?

vb/r will always be 5m/s in this case?

http://ift.tt/1diNcJ9