Answer
a) -0.6 $m/s^{2}$
b) +9.4 m/s
Work Step by Step
Let due north be the positive direction
a)
a = $\frac{v-u}{t}$ = $\frac{10.6 - 13.0}{4.0}$ = -0.6 $m/s^{2}$
The direction of the emu's acceleration is due south
b)
v = u + at = (10.6) + (-0.6)(2.0) = +9.4 m/s
