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2007-10-14 17:17:40 · 6 answers · asked by cc 2 in Science & Mathematics Physics

in a vacuum

2007-10-14 17:25:50 · update #1

6 answers

Speed is constant only if it is in a circular orbit. ( which is still freefall)
The speed will be constant in this case only.

2007-10-14 17:29:49 · answer #1 · answered by Demiurge42 7 · 0 0

It depends on the distance from which the object falls. Like if you drop a rock from the top of a building, and no wind blows it off of its course, the speed of the rock will increase at a rate of 9.8 m/s/s until it hits the ground. However, if you fall out of an airplane thousands of feet above the ground, you will eventually reach terminal velocity, when the force of gravity is equal to the force of drag, and you stop accelerating. But once you open your parachute, if you are lucky enough to have one, you begin to accelerate upward.

2007-10-14 17:32:48 · answer #2 · answered by Anonymous · 0 1

The speed would be constantly increasing, as the object would be constantly accelerating in a vacuum.

(This is holding that this vacuum is on earth.)

2007-10-14 17:28:31 · answer #3 · answered by Anonymous · 0 0

b) the item is difficulty to 2 time-honored forces. One is gravity (relatively consistent over the gap it falls) and air resistance. via fact air resistance is a function of the speed, the stress is various. This leads to a various acceleration. A plot of velocity as against time would not instruct a rapidly line that hits the terminal velocity and then is going flat. particularly it would be a curve that asymtotically techniques terminal velocity.

2016-10-06 23:07:13 · answer #4 · answered by richberg 4 · 0 0

During a normal free fall, the speed at which you fall, the speed increases every second. The beginning speed is 9.6m/ sec . it increases by the same variable per second. i.e. 1 sec its 9.6m, 2 sec its 19.2m, 3 sec its 28.8m. and so on....... Fine?

2007-10-14 17:31:42 · answer #5 · answered by at2j 1 · 0 0

I would think it would be constant.. unless the object that is free falling has weight changes. I'm not sure, though.

2007-10-14 17:23:16 · answer #6 · answered by hardxcoregamer 3 · 0 1

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