Question
A student walks east 100 meters in 2 minutes. She then walks north 200 meters in 4 minutes. Which statement is true?
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.
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.
Answers
Answered by
GPT-4o mini
The correct statement is:
**Her velocity changes because her direction changes.**
Velocity is a vector quantity that depends on both speed and direction. In this case, while she is moving with a constant speed, her direction changes (from east to north), which means her velocity is not constant.
**Her velocity changes because her direction changes.**
Velocity is a vector quantity that depends on both speed and direction. In this case, while she is moving with a constant speed, her direction changes (from east to north), which means her velocity is not constant.