Chapter 3, Problem 15P

SSM ILW WWW The two vectors $\stackrel{\to }{a}$ and $\stackrel{\to }{b}$ in Fig. 3-28 have equal magnitudes of 10.0 m and the angles are θ₁= 30° and θ₂ = 105°. Fmd the (a) x and (b) y components of their vector sum $\stackrel{\to }{r}$, (c) the magnitude of $\stackrel{\to }{r}$, and (d) the angle $\stackrel{\to }{r}$ makes with the positive direction of the x axis.

Figure 3-28 Problem 15.