Galileo did.
Galileo Galilee dropped two balls off of the top of the Leaning Tower of Pisa. One was wooden and the other was a cannon ball. He dropped them at the same time to see which one would hit the ground first.
198 feet 10.66 inches
They will fall at the same rate, for more information Google "why was the leaning tower of Pisa built"
Due to the force of gravity. The gravitational attraction between the Earth and the ball is what causes the ball to drop.
Both the sheet of paper and the crumpled ball of paper will reach the ground at the same time. This is because the shape or size of an object does not affect the rate at which it falls in the absence of air resistance, as demonstrated by Galileo in his Leaning Tower of Pisa experiment.
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A rock that is dropped, and a apple falling from a tree.Hold a ball in your hand, stretch out your arm, and drop the ball. As it is moving towards the ground, it is in free fall.
I dropped a ball
He dropped the ball.
Galileo would have observed that both the burlap ball and the 2-pound rock would have hit the ground at the same time. This would have demonstrated that objects fall at the same rate regardless of their weight, disproving the prevailing belief at the time that heavier objects fall faster.
The height from which the ball is dropped is the independent variable, as it is what is being manipulated. The height of the ball's bounce is the dependent variable, as it is what is being measured and is affected by the height from which the ball is dropped.
galilieo galilei was important because he figured out that the sun is in the centre of the universe not earth, he also improved the telescope, military compass and the thermometer, also he started physics science as he dropped two different weight stone ball from the tower of Pisa to show that the heavier one do not fall faster than the lighter one... so that is why Galileo is so important to mankind