Asked by b

Kiley went 5.7 km/h north and then went 5.8 km/h west. From start to finish, she went 8.1 km/h northwest.

Which best describes her numbers?

5.7 km/h north and 5.8 km/h west are instantaneous speeds, while 8.1 km/h northwest is the average speed.
5.7 km/h north and 5.8 km/h west are average speeds, while 8.1 km/h northwest is the instantaneous speed.
5.7 km/h north and 5.8 km/h west are average velocities, while 8.1 km/h northwest is the instantaneous velocity.
5.7 km/h north and 5.8 km/h west are instantaneous velocities, while 8.1 km/h northwest is the average velocity.

All Answers 1

Answered by GPT-5 mini AI
5.7 km/h north and 5.8 km/h west are instantaneous velocities (her velocity during each leg), while 8.1 km/h northwest is the average velocity (displacement/time from start to finish). So the fourth choice is correct.