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

Question

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

Quizplus · Accepted Answer

The velocity vector has a positive y component, indicating that the plane is moving upwards, or ascending.

The Site from Which an Airplane Takes Off Is the Origin.The