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Freefall is a web comic that follows the adventures of Sam Starfall, a human who lives on a space station with robots. Read the latest episode, see the grayscale version, or browse the archive of previous stories.
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Freefall in color by many folks. TRANSCRIPT Niomi: The...
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Freefall in color by many folks. TRANSCRIPT Rover17: You two...
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Freefall in color by many folks. TRANSCRIPT Mr. De Morel:...
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Free fall is the state of a body that moves freely in any manner in the presence of gravity. Learn how free fall works, what factors affect it, and how it differs from weightlessness and motion.
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Review the key concepts and skills for acceleration due to gravity, including analyzing motion of objects in freefall.
Freefall is a special case of motion with constant acceleration, because acceleration due to gravity is always constant and downward. This is true even when an object is thrown upward or has zero velocity.
[Is gravitational acceleration really constant?]
For example, when a ball is thrown up in the air, the ball's velocity is initially upward. Since gravity pulls the object toward the earth with a constant acceleration g , the magnitude of velocity decreases as the ball approaches maximum height.
At the highest point in its trajectory, the ball has zero velocity, and the magnitude of velocity increases again as the ball falls back toward the earth (see figure 1).
People mistakenly think the final velocity for a falling object is zero because objects stop once they hit the ground. In physics problems, the final velocity is the speed just before touching the ground. Once it touches the ground, the object is no longer in freefall.
For deeper explanations of freefall, see our videos plotting projectile motion and impact velocity from a given height.
To check your understanding and work toward mastering these concepts, check out our exercises freefall concepts and graphs and using kinematic formulas to solve freefall problems.
Learn about acceleration due to gravity, freefall motion, and common misconceptions. See examples, exercises, and videos on freefall concepts and graphs.
Free fall. In Newtonian physics, free fall is any motion of a body where gravity is the only force acting upon it. In the context of general relativity, where gravitation is reduced to a space-time curvature, a body in free fall has no force acting on it. An object in the technical sense of the term "free fall" may not necessarily be falling ...
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3 days ago · Calculate the velocity and distance of a falling object using the free fall equation. Learn the definition, formula and examples of free fall, and discover the highest free fall in history.
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Learn about the factors that affect the acceleration of an object in free fall, when gravity is the only force acting on it. Explore the history and experiments of Galileo and other scientists who studied free fall.
Jan 16, 2023 · y = y0 +V0yt + 1 2ayt2 (13A.2) (13A.2) y = y 0 + V 0 y t + 1 2 a y t 2. This equation tells us that the y y value at any time t t is the initial y value plus some other terms that depend on t t. It’s valid for any time t t, starting at the launch time t = 0 t = 0, while the object is in projectile motion. In particular, it is applicable to ...