Question

Hector went to the music store by heading due south at 3 m/s, then turning West and continuing at the same speed for another three blocks. Which of the following is true about Hector's velocity?(1 point)
Responses

Hector's velocity did not change because his direction did not change.
Hector's velocity did not change because his direction did not change.

Hector's velocity changed because his direction changed.
Hector's velocity changed because his direction changed.

Hector's velocity changed because his speed changed.
Hector's velocity changed because his speed changed.

Hector's velocity did not change because his speed did not change.

1 answer

The correct response is:

Hector's velocity changed because his direction changed.

Velocity is a vector quantity, which means it has both magnitude (speed) and direction. Even though Hector maintained the same speed throughout his journey, his change in direction (first heading south and then turning west) means that his velocity changed.