Responses
Her velocity is constant because her speed is constant.
Her velocity is constant because her speed is constant.
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.
1 answer
The correct statement is:
Her velocity changes because her direction changes.
Velocity is a vector quantity that depends on both speed (a scalar) and direction. In this case, the student first moves east and then north, which means her direction changes even if her speed remains constant. Therefore, her velocity changes as she changes direction.
