Bullet G is dropped, from rest, at the same time that another bullet H is fired horizontally from a rifle. If both bullets leave from the same height above the ground, then
A) not enough information is given to compare when they hit.
B) both bullets hit the ground at the same time.
C) bullet H hits the ground before bullet G does.
D) bullet G hits the ground before bullet H does.

Question

Quizplus · Accepted Answer

Both bullets hit the ground at the same time because the time it takes for an object to fall to the ground is determined only by its initial vertical position and the acceleration due to gravity, not by its horizontal velocity. Both bullets start from the same height and have the same vertical acceleration due to gravity, so they hit the ground simultaneously.

Bullet G Is Dropped, from Rest, at the Same Time