The discussion revolves around calculating the average velocity of a runner based on their lap times over a 1500 meter race, with specific lap times provided for 400 meter segments. Participants express confusion regarding the wording of the question and the implications of the lap times in relation to the total distance.
The discussion is ongoing, with participants exploring different interpretations of the problem. Some have offered guidance on the definitions of average velocity versus average speed, while others are questioning the feasibility of the scenario presented in the question.
There is a noted ambiguity regarding the total distance of the race in relation to the lap times provided, leading to confusion about the correct application of the average velocity formula. Participants are considering the implications of running on a 400 meter track for a 1500 meter race.
This question is horrendously worded. If the runner completed four laps of a 400m track, then he would have traveled 1600m, not 1500m. I'm not sure if the last timing refers to the final 300m, or implied that the runner continued for an additional 100m after the race had finished. If it is the former, then the question can be answered (even though it is badly defined). If it is the latter, then the question cannot be answered.bionut said:
If those times are indeed the 400m lap-times, then the question cannot be answered, in my opinion.bionut said:
Over a 1600m race, that could be the case. However, over a 1500m race on a 400m track, that cannot possibly be the case. There is no way that a runner can start and finish a 1500m race at the same point on a 400m track.bionut said:
bionut said:
tiny-tim said:Hey guys!
Read the question! …
average velocity, not average speed!
bionut said:
Hootenanny said:
tiny-tim said:Hi Hoot!
Well, the answer is 0 m/s, so he must have done it somehow!
Could a typo be the culprit? Could that be a 1600 meter race? (How do you get four 400 m laps to add to 1500 m?)bionut said: