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:
Average velocity is the measure of the rate of change in an object's position over a given time period. It is calculated by dividing the displacement of an object by the time it took to travel that distance.
Although they both measure the rate of change in an object's position, average velocity also takes direction into account, while average speed does not. Average velocity is a vector quantity, while average speed is a scalar quantity.
The average velocity of a runner in a 1500m race can be affected by a variety of factors, such as the runner's physical abilities, their training and technique, the track surface, weather conditions, and any obstacles on the track.
The average velocity of a runner in a 1500m race is calculated by dividing the total distance (1500m) by the total time it took the runner to complete the race. This will give the average velocity in meters per second.
Knowing the average velocity of a runner in a 1500m race can provide valuable information about their performance and help track their progress. It can also be used to compare different runners or races, and can be used to make predictions about future races.