A student walks east 100 meters in 2 minutes. She then walks north 200 meters in 4 minutes. Which statement is true?(1 point)

Question

Responses

Her velocity is constant because her direction is constant.
Her velocity is constant because her direction is constant.

Her velocity is constant because her speed is constant.
Her velocity is constant because her speed is constant.

Her velocity changes because her direction changes.
Her velocity changes because her direction changes.

Her velocity changes because her speed varies.

Answer 1

The correct statement is:

Her velocity changes because her direction changes.

Explanation: Velocity is a vector quantity, which means it has both magnitude (speed) and direction. In this case, the student changes direction from east to north, so the velocity changes. The speed is not constant either, as she covers different distances in different time frames, but the primary reason for the change in velocity is the change in direction.