MLA Citation: Bloomfield, Louis A. "Question 1324"
How Everything Works 17 Oct 2017. 17 Oct 2017 <http://howeverythingworks.org/print1.php?QNum=1324>.
1324. When you drop a small rubber ball and a large rubber ball simultaneously, why do they both hit the floor at the same time?
The fact that both balls fall together is the result of a remarkable balancing effect. Although the larger ball is more massive than the smaller ball, making the larger ball harder to start or stop, the larger ball is also heavier than the smaller ball, meaning that gravity pulls downward more on the larger ball. The larger ball's greater weight exactly compensates for its greater mass, so that it is able to keep up with the smaller ball as the two objects fall to the ground. In the absence of air resistance, the two balls will move exactly together-the larger ball with its greater mass and greater weight will keep up with the smaller ball.

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