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 changes because her speed varies.
Her velocity changes because her speed varies.

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

Her velocity is constant because her speed is constant.
Her velocity is constant because her speed is constant.
Skip to navigation

Answer 1

The correct statement is:

Her velocity changes because her direction changes.

This is true because velocity is a vector quantity that includes both speed and direction. Even though the student may have a constant speed while walking, she changes direction when she walks from east to north, which means her velocity changes.