In a laboratory on Earth, all the air is pumped from a large tube. A feather and a steel ball are simultaneously released from rest inside the tube. What happens next?
A) Both objects float weightless inside the tube.
B) The steel ball falls and hits the bottom before the feather.
C) The feather falls and hits the bottom before the steel ball.
D) Both objects fall and hit the bottom at the same time.

Question

Quizplus · Accepted Answer

Without air resistance, all objects in a vacuum fall at the same rate regardless of their mass, so the feather and the steel ball hit the bottom simultaneously.

In a Laboratory on Earth, All the Air Is Pumped