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Objects do fall at the same rate, regardless of mass, in a vacuum. In air, wind resistance affects the NET of the forces accelerating the object. The heavier object WILL fall faster in air because the wind resistance, although the same between the two objects, represents a larger percentage of the forces acting on the lighter object. The heavier object will fall faster.

That is incorrect.

Weight has nothing to do with how fast things fall, only wind resistance. Take two 16 ounce soda bottles, open one drink eight ounces. The unopened bottle is twice as heavy as the opened bottle. Close the bottle you just drank half of and drop them at the same time from a tall building, they will hit the ground at the same time. That is because gravity is a constant and the velocity of any falling object is 9.8 meters per second/per second.

Acceleration is the same for all objects at 9.8m/sec/sec.

Acceleration due to gravity near the earth's surface is the same for all objects regardless of their mass.

I took a 20lb (9.07kg) heavy exercise ball (aka medicine ball or strength training ball), and a soccer ball (which weighs 16 ounces aka 1 pound or 0.45kg). I dropped them both simultaneously, they both hit the ground at the same time, even though the medicine ball weighed 20 times as much as the soccer ball. I am not sure what you would like explained. as I can tell you that your example of 1% full and 100% full is false. 1/4, 1/2 full or completely full, it makes no difference. Your experiment must have been flawed, as it is impossible for them to fall at different rates. Here's the science behind it.

Every planetary body (including the Earth) is surrounded by its own gravitational field, which exerts an attractive force on all objects. Assuming a spherically symmetrical planet, the strength of this field at any given point is proportional to the planetary body's mass and inversely proportional to the square of the distance from the center of the body.

The strength of the gravitational field is numerically equal to the acceleration of objects under its influence, and its value at the Earth's surface, denoted g, is expressed below as the standard average. According to the Bureau International de Poids et Mesures, International Systems of Units (SI), the Earth's standard acceleration due to gravity is:

g = 9.80665 m/s2 = 32.1740 ft/s2).

This means that, ignoring air resistance, an object falling freely near the Earth's surface increases its velocity by 9.80665 m/s (32.1740 ft/s or 22 mph) for each second of its descent. Thus, an object starting from rest will attain a velocity of 9.80665 m/s (32.1740 ft/s) after one second, approximately 19.62 m/s (64.4 ft/s) after two seconds, and so on, adding 9.80665 m/s (32.1740 ft/s) to each resulting velocity.

Also, again ignoring air resistance, any and all objects, when dropped from the same height, will hit the ground at the same time. So two objects with the same aerodynamic values (aka air resitance) will hit the ground at the same time. That includes our coke bottles and the soccer ball and exercise ball.

A set ofdynamical equations describe the resultant trajectories when objects move owing to a constant gravitational force under normal Earth-bound conditions. For example, Newton's law of universal gravitation simplifies to F = mg, where m is the mass of the body.

Near the surface of the Earth, use g = 9.8 m/s² (meters per second squared; which might be thought of as "meters per second, per second", or 32 ft/s² as "feet per second per second"), approximately. For other planets, multiply g by the appropriate scaling factor. It is essential to use a coherent set of units for g, d, t and v. Assuming SI units, g is measured in meters per second squared, so dmust be measured in meters, t in seconds and v in meters per second.

In all cases, the body is assumed to start from rest. Generally, in Earth's atmosphere, this means all results below will be quite inaccurate after only 5 seconds of fall (at which time an object's velocity will be a little less than the vacuum value of 49 m/s (9.8 m/s² × 5 s), due to air resistance). When a body is travelling through any atmosphere other than a perfect vacuum it will encounter a drag force induced by air resistance, this drag force increases with velocity. The object will reach a state where the drag force equals the gravitational force at this point the acceleration of the object becomes 0, the object now falls at a constant velocity. This state is called the terminal velocity.

The drag force is dependant on the density of the atmosphere, the coefficient of drag for the object, the velocity of the object (instantaneous) and the area presented to the airflow.

This equation occurs in many applications of basic physics.

Distance travelled by an object falling for time : Time taken for an object to fall distance : Instantaneous velocity of a falling object after elapsed time : Instantaneous velocity of a falling object that has travelled distance : Average velocity of an object that has been falling for time (averaged over time): Average velocity of a falling object that has travelled distance (averaged over time): Instantaneous velocity of a falling object that has travelled distance on a planet with mass , with the combined radius of the planet and altitude of the falling object being , this equation is used for larger radii where is smaller than standard at the surface of Earth, but assumes a small distance of fall, so the change in is small and relatively constant:

Instantaneous velocity of a falling object that has travelled distance on a planet with mass and radius (used for large fall distances where can change significantly):

Example: the first equation shows that, after one second, an object will have fallen a distance of 1/2 × 9.8 × 12 = 4.9 meters. After two seconds it will have fallen 1/2 × 9.8 × 22 = 19.6 meters; and so on.

We can see how the second to last, and the last equation change as the distance increases. If an object were to fall 10,000 meters to Earth, the results of both equations differ by only 0.08%. However, if the distance increases to that of geocynchronous orbit, which is 42,164 km, the difference changes to being almost 64%. At high values, the results of the second to last equation become grossly inaccurate.

For astronomical bodies other than Earth, and for short distances of fall at other than "ground" level, gin the above equations may be replaced by G(M+m)/r² where G is the gravitational constant, M is the mass of the astronomical body, m is the mass of the falling body, and r is the radius from the falling object to the center of the body.

Removing the simplifying assumption of uniform gravitational acceleration provides more accurate results. We find from the formula for radial eliptic trajectories:

The time t taken for an object to fall from a height r to a height x, measured from the centers of the two bodies, is given by:

where is the sum of the standard gravitational parameters of the two bodies. This equation should be used whenever there is a significant difference in the gravitational acceleration during the fall.

Galileo Galilei (1564 -- 1642) was an Italian physicist , astronomer, astrologer, and philosopher closely associated with the scientific revolution. One of his most famous experiments was his demonstration from the Leaning Tower of Pisa.

In the late 16th century, it was generally believed heavier objects would fall faster than lighter objects; Galileo thought differently. He hypothesized that two objects would fall at the same rate regardless of their mass. Legend has it that in 1590 he climbed the Leaning Tower of Pisa and dropped several large objects from the top. The objects did reach the ground at very similar times and Galileo concluded if you removed air resistance, they would reach the ground at exactly the same time.

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Aristotle said heavy objects will fall faster and Galileo said heavy and light objects will fall at the same acceleration?

Galileo's theory is more accurate - in a vacuum, objects of different weights will fall at the same rate. This principle is known as the equivalence principle. Aristotle's notion was based on observations in air where air resistance affects the fall rate of heavier objects.


Which falls faster a 15 pound bowling bowl or a 5 pound rock?

Both objects will fall at the same rate in a vacuum due to gravity acceleration being constant. However, in the presence of air resistance, the heavier bowling ball will fall faster due to its greater inertia allowing it to overcome air resistance more effectively.


Conflicting ideas of Galileo and Aristotle about motion?

af Example: a hammer falls faster than a feather Galileo: Proved that an objects mass has no effect on its rate of acceleration as it falls. What causes things to fall at different rates here on earth is air resistance. Aristotle: Believed that heavier objects fall faster than lighter object af Example: a hammer falls faster than a feather Galileo: Proved that an objects mass has no effect on its rate of acceleration as it falls. What causes things to fall at different rates here on earth is air resistance. Aristotle: Believed that heavier objects fall faster than lighter object


What experiment of Galileo's involved cannonballs?

Galileo's experiment to show that mass had little effect on the speed of falling objects involved two cannonballs of different sizes being dropped from a certain height. This showed that, in a vacuum at least, falling objects fall at the same speed no matter their mass.


What year did Galileo prove the Aristotle theory wrong?

Galileo challenged Aristotle's belief that heavier objects fell faster than lighter ones.

Related Questions

Does lighter objects fall down faster then heavier objects?

No lighter things do not fall faster than heavier things. In a vacuum they will fall at the same speed. Normally the heavier thing will fall down faster because of its weight. Sometimes the lighter thing falls faster depending on the air resistance.


Why heavier objects fall faster than do lighter objects?

They don't. All objects fall at the same rate of speed because of weight.


Do heavier objects fall faster than lighter objects when on a parachute?

Assuming the parachutes are the same size, then yes.


Why do heavier objects fall faster then lighter objects?

In a vacuum, all objects fall at the same rate regardless of weight due to gravity. However, in the presence of air resistance, heavier objects are less affected by air resistance than lighter objects, allowing them to fall faster. This is because air resistance is proportional to the surface area of the object, while weight is proportional to mass.


Discovered that heavier objects fall faster than light ones?

Galileo Galilei found out


Why do heavier items fall faster than lighter ones?

In a vacuum, all objects fall at the same rate regardless of weight due to gravity. However, in the presence of air resistance, heavier objects overcome this resistance more easily and reach the ground faster. This is because heavier objects have more momentum and force to push through the air.


What did Galileo discover about falling objects?

Galileo discovered that all objects fall at the same rate regardless of their weight, disproving the common belief at the time that heavier objects fall faster than lighter ones.


Does heavier object fall faster?

In a vacuum, all objects fall at the same rate of acceleration regardless of their weight. This is due to the principle of gravity. However, in the presence of air resistance, heavier objects may fall faster than lighter objects due to their ability to overcome air resistance more effectively.


Do heavier objects fall faster or slower than light one?

Without air resistance, heavier and lighter object fall at the same speed. More precisely, they accelerate at the same speed - near Earth's surface that would be 9.8 meters/second2. If air resistance is significant, heavier objects tend to have less air resistance, compared to their weight, so they will usually fall faster.


What were the results of Galileo's experiment on falling objects?

Galileo's experiment on falling objects showed that objects of different weights fall at the same rate, disproving the common belief at the time that heavier objects fall faster than lighter ones.


How do falling objects behave?

Falling objects behave in such a way that heavier objects will fall faster than the lighter ones. Try to drop a stone and a feather from the same height and at the same time, the stone will fall to the ground first.


Who claimed that heavier objects fall faster than lighter objects?

Aristotle formed the theory that objects fall at rates relative to their mass. This is not true. Galileo performed the experiment atop the leaning tower of pisa where he dropped 2 balls of different masses and they fell at the same rate (9.81 m/s/s)