The Site from Which an Airplane Takes Off Is the Origin

Multiple Choice

The site from which an airplane takes off is the origin. The x axis points east; the y axis points straight up. The position and velocity vectors of the plane at a later time are given by: $\overrightarrow{\mathbf{r}}=\left(1.61 \times 10^{6} \hat{\mathbf{i}}\right) \mathrm{m}$ and $\overrightarrow{\mathbf{v}}=+100 \hat{\mathbf{i}} \frac{\mathrm{~m}}{\mathrm{~s}}$ .The plane is most likely:

A) just touching down.
B) in level flight in the air.
C) ascending.
D) descending.
E) taking off.