You drop a ball from rest while your friend throws a second identical ball horizontally from the same height as you. Neglecting air resistance, which ball hits the ground first

Question

A. The ball thrown horizontally hits first

B. They both hit at the same time

C. The dropped ball hit first

D. Cannot be determined

Answer 1

Air resistance is neglected here. Horizontally launched projectiles are analyzed in the vertical direction as a free falling object from rest. Both balls hit the ground at the same time since both balls have an initial vertical velocity of 0.