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On Earth, the gravitational constant is 9.8m/s.
That said, any object subject to free fall (no other force other than gravity acting on it) will fall at a constant acceleration of 9.8m/s until it hits terminal velocity. So after one second the object will have fallen 9.8 meters, in 2 seconds 19.6m, three seconds 29.6m, etc.

This is only completely accurate in a vaccum, air resistance slows objects down depending on the objects mass (larger mass will penetrate air better) and surface area (large surface area= high air resistance)

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13y ago
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12y ago

The speed of a free-falling object, near the surface of the Earth, without

air resistance, increases 32.2 feet per second every second during its fall.

That quantity is called the "acceleration of gravity" near the Earth's surface.

The object's velocity is directed downward, and its magnitude increases at that rate.

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12y ago

An object accelerates at 9.81m/s while in freefall so that's 32.1850394 feet/s

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Q: How many feet per second does an object fall?
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