Problema Solution
A jet leaves the Charlotte,North Carolina,airport traveling at an average rate of 564 km/hour.Another jet leaves the airport one half an hour later traveling at 744 km/hour in the same direction. How long will the second jet take to overtake the first?
Answer provided by our tutors
distance = speed * time
let 't' represent the time in hours it takes for the second jet to overtake the first
let 't-0.5' represent the time travelled after leaving one half hour later
set the distance equations equal to each other and solve for 't':
564t=744(t-0.5)
t=2.0666
So it would take approximately 2 hours and 4 minutes for the 744 km/hr jet to catch up to the 564 km/hr jet.