(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A science student is riding on a flatcar of a train traveling along a straight horizontal tract at a constant speed of 10.0m/s. The student throws a ball along a path that she judges to make an initial angle of 60.0degrees with the horizontal and to be in line with the track. The student's professor, who is standing on the ground nearby, observes the ball to rise vertically. How high does the ball rise?

2. Relevant equations

velocity(ab) = velocity(ae)-velocity(be)

change in y=(v{o} sin{theta})t-.5gt^2

= v{o}t+.5at^2

change in x=v{o}t

3. The attempt at a solution

I'm not sure what to assign for ab, ae and be in this problem.

Also, once I solve for the actual velocity, I'm still left with two unknowns, how far it has gone and how long it took to get there. What am I missing here?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Relative Velocity

**Physics Forums | Science Articles, Homework Help, Discussion**