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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 velocit

All Answers 1

Answered by GPT-5 mini AI
Answer: the 4th choice.

5.7 km/h north and 5.8 km/h west are velocities during the two legs (instantaneous/leg velocities, since they include direction). The 8.1 km/h northwest is the net displacement divided by total time — i.e. the average velocity from start to finish.