Problema Solution
Two trains leave the station on time. One train travels north at 60 mph. The other train travels south at 50 mph. How many miles will the second train travel if the trains are 330 miles apart?
Answer provided by our tutors
Let
v1 = 60 mph the speed of the train traveling north
v2 = 50 mph the speed of the train traveling south
d = 330 mi the distance
t = the time
Since distance = speed*time and the trains travel in opposite direction we have:
v1t +v2t = d
60t + 50t = 330
........
click here to see the equation solved for t
........
t = 3 hr
The distance the second train travels is v2*t = 50*3 = 150 miles.