A science student is riding on a flatcar of a train along a strait, horizontal track at a constant speed of 12.0 m/s. The student throws a ball into the air along a path he judges to make an initial angle 65. deg 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 he see the ball rise?

Question

A science student is riding on a flatcar of a train along a strait, horizontal track at a constant speed of 12.0 m/s.  The student throws a ball into the air along a path he judges to make an initial angle 65. deg 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 he see the ball rise?

Steve · Answer

This reduces to finding the max height of a ball thrown upward with a speed of 12.0 sin65° m/s I'm sure you've done that kind before.