If an object starts at rest and moves 60 meters north along a straight line in 2 seconds, what is the average velocity?

The average velocity, expressed as a vector, is v=30 m/s with direction north.

Explanation:

In this case, we will obtain a vector velocity, and the correct answer will be expressed as a vector. But as the movement happens only along a straight line (with direction to the north from the point of rest), we can do the math calculation as a one-dimensional problem. Then the final velocity will be a vector with the calculated magnitude, pointing to the north, as we already know.

The question is simple, as we were given the distance in meters that the object moved in a straight line, and the time in seconds that took the object to move that distance, we have the correct units and we can write the average velocity as

where d is the distance, and t is the time. Therefore

which is the magnitude of the velocity we wanted to know, then we express it as vector saying its direction (north, for our system of reference).

it may be wrong but i think its a

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