A passenger at the rear of a train traveling at 15 m/s relative to Earth throws a baseball with a speed of 15 m/s in the direction opposite the motion of the train. What is the velocity of the baseball relative to Earth as it leaves the thrower’s hand?
The velocity of the baseball relative to Earth as it leaves the thrower's hand is 0 m/s.
Enough of these stupid velocity problems!
If you don't get it by now, you never will!
Or, show some work of your own.
Of course, the bot gets most of 'em wrong anyway, so ...