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
and
. The plane is most likely
A) just touching down.
B) in level flight in the air.
C) ascending.
D) descending.
E) taking off.
Correct Answer:

Verified
Correct Answer:
Verified
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