That causes WHAT motion to slow? A ball being thrown upward? I'm not sure that an experiment can demonstrate that it is gravity and not the ball magnet fairy underground pulling it down.
A more testable hypotheses is that something pulls the ball down at a fixed rate of acceleration. You could set that up with a camera that can take pictures at fixed time intervals.
2007-04-02 11:06:46
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answer #1
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answered by Anonymous
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The classic experiment is to drop two objects of different mass (M and m) from the same height (h) and measure how long it took (t) each to reach h = 0. .
You will find that T(for M) = t(for m); that is, both objects take the same amount of time to reach h = 0 no matter what their masses might be. Then from h = vt = VT = Vt, we find that V = v the final velocites for both masses dropped from h.
And then V = GT = Gt = gt = v, where G and g are the respective accelerations on the large and small masses, due to gravity. But, as T = t from our experiment, G = g. No matter the size of the masses, they will accelerate at the same rate. And they will impact at h = 0 with identical velocities.
This outcome will not work for objects affected by air drag, but a bowling ball (M) and a golf ball (m) will work just fine because they are little affected by drag forces.
Physics learned from this experiment: The acceleration due to gravity on Earth's surface is constant. Thus G(M) = g(m) = g no matter what the size of mass dropped.
This is a remarkable, but counter intuitive result. Before Newton discovered this, people just naturally thought heavier objects would fall faster than lighter objects. Why? Because W = MG and w = mg; where W and w are the weights of the bigger and smaller masses. But when they looked at the ratios W/w = MG/mg they discovered that the g's cancelled out each time; so that W/w = M/m and W = w(M/m) which meant the weights were always proportional to the respective masses. Thus the g's had to be the same (G = g) no matter what the mass was....weird.
2007-04-02 11:26:40
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answer #2
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answered by oldprof 7
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In a manner of talking. i began a rumor interior the 70's throughout the gas scarcity. I instructed people the place I labored that by using oil scarcity, pens that used petroleum based ink have been going to vanish... there replaced into going to be a pen scarcity. For the subsequent 3 weeks you probably did no longer dare set down a pen, it might disappear! At that element I instructed some people approximately my rip-off, notice unfold and pens have been risk-free lower back!
2016-11-25 21:30:33
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answer #3
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answered by ? 4
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Compare a young person's bod with an old lady bod. Gravity effects the movement. lol
2007-04-02 11:03:23
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answer #4
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answered by Anonymous
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Bowling?
2007-04-02 11:02:41
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answer #5
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answered by Year of the Monkey 5
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Throw a ball and watch it hit the floor.
2007-04-02 11:02:56
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answer #6
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answered by **ic** 4
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have someone throw a baseball, and then clock the ball's speed at various points in its trajectory.
2007-04-02 11:03:26
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answer #7
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answered by mighty_power7 7
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Catapaulting things upwards, and seeing how far they go.
2007-04-02 11:03:24
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answer #8
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answered by Anonymous
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ticker tape....place it on the end of a trolley...
2007-04-02 11:03:57
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answer #9
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answered by Anonymous
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