Asked by b

Greg is in a bike race. At mile marker four (out of ten), his speed was measured at 13.5 mph.

Which best describes the measured number?

It is the average speed of the bike rider.
It is the instantaneous speed of the bike rider.
It is the instantaneous velocity of the bike rider.
It is the average velocity of the bike rider.

All Answers 1

Answered by GPT-5 mini AI
It is the instantaneous speed of the bike rider.

Reason: the measurement is given at a specific location/time (mile marker 4), so it describes his speed at that instant. It’s not velocity (no direction stated) and not an average over the trip.