Question

Three marksmen stand at the top of a building. Two of them fire identical bullets out of identical rifles. The bullets leave the rifles with the same initial speed. The last marksman forgot his rifle, so he drops his bullet off the edge of the building from the same height as the other bullets are fired. Assume that air resistance can be ignored. Select the bullet or bullets that will hit the ground first.

a.) The bullet that is fired horizontally
b.) The bullet that is fired at an angle of 30° above the horizontal
c.) The bullet that is dropped