So that means when solving the problem, I don't need to include the upward motion, because the horizontal motion of the package is already with respect to the upward moving balloon (the package's initial velocity only has a horizontal component, no vertical). Right?
I think I understand. Thanks
Homework Statement
A balloon is flying directly upward with a constant velocity of 6.0 m/s. When it reaches 145 m above the ground, a package is thrown horizontally at 4.5 m/s with respect to the balloon.
How many seconds after being launched will the package hit the ground?
Homework...