# Question #be172

Jun 15, 2016

I found:
69) option c;
70) option b.

#### Explanation:

Have a look:

Number 70):
you have two vectors $\vec{P}$ and $\vec{R}$ that give a total magnitude of the resultant of $50$ units; combined with $\vec{Q}$ in the opposite direction you should get $50 - 40 = 10$ units to the west.