Problema Solution
Two michigan state university cross-country runners are 440 yards apart and are running towards each other, one at 8mph and the other at 10mph. In how many seconds will they meet
Answer provided by our tutors
d = 440 yards = 440*0.000568182 miles
v1 = 8 mph
v2 = 10 mph
t = the time we need to find
t*v1 + t*v2 = d
t(v1 + v2) = d
t = d/(v1 + v2)
t = 440*0.000568182/(8 + 10)
t = 0.0139 hours = 0.0139*60*60 = 50 seconds
the will meet after 50 seconds.