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

Her velocity changes because her direction changes.
Her velocity is constant because her speed is constant.
Her velocity is constant because her direction is constant.
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 that includes both speed and direction. While the student may have a constant speed during the two segments of her walk, her direction changes from east to north, which means her velocity is also changing.