I really thought I could have found this on the search function but hey, here goes! 1. The problem statement, all variables and given/known data Two trains, each having a speed of 26 km/h, are headed at each other on the same straight track. A bird that can fly 60 km/h flies off the front of one train when they are 66 km apart and heads directly for the other train. On reaching the other train it flies directly back to the first train, and so forth. (We have no idea why a bird would behave in this way.) What is the total distance the bird travels before the trains collide (in meters)? 2. Relevant equations average velocity=total displacement/total time 3. The attempt at a solution I worked on this quite a few times, and I first solved for the velocites of the trains. Then I found out when they'd hit collide. My distance came out to be 60,000.00001. Is this correct? Just a bit of backgroud info on me! I'm a computer engineering student (and a girl!) and I'm having a hard time in calculus II and physics 201 at my school. I go to tutoring and get as much extra help as my schedule allows! I hope to learn a lot from this forum and succeed this semester! Happy to meet all of you!