Q:

# Does weight affect how fast an object falls?

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Objects fall at the same velocity regardless of their weight, if gravity is the only force acting upon them. In a vacuum, where air resistance has been eliminated, a bowling ball and a feather fall at the same speed.

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A falling object accelerates at a constant rate due to the gravitational force of the earth. If there were no air resistance, an object would continue accelerating at the same rate until it hits the ground. However, the presence of air means the object is constantly colliding with countless air molecules. These accumulated collisions create resistance, and gradually slow the falling object until it reaches the point where the force of gravity and the force of air resistance are equal. At this point the object falls at a constant speed which is known as the "terminal velocity."

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## Related Questions

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According to Education.com, the pull of gravity acts more on an object rolling down a ramp inclined at a steeper angle, hence causing it to accelerate and move faster. For Dummies explains that when objects are rolling down an inclined plane such as a ramp, a component of the force of gravity causes it to accelerate downward.

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The net force on an object is calculated by combining the different forces being exerted on the object if the forces are on the same axis. When more than one axis is involved, the net force for each axis must be found. The Pythagorean Theorem is then used to find the net force.

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A plastic section modulus is a geometric property for a cross section of an object generally used in materials in which plastic behavior can be observed. This is only one of the two different types of plastic section modulus used in engineering and design. Plastic section modulus is the more uncommon form of plastic section modulus, and most general designs by engineers do not use it in their calculations.