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Old 07-02-2015, 05:54 PM   #1
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F=ma, yesterday, today and tomorrow!

At the end of each and every day, F still equals ma.

Ole Issac had it figured out and printed it for us in 1687.

Thought I should post a reminder since there are a few here that seem to believe it is no longer valid.
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Old 07-02-2015, 07:20 PM   #2
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That's all well and good, but is it momentum (mv) or kenetic energy (m*v2) that really matters? Torque or horsepower? Inquiring minds want to know!
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Old 07-02-2015, 07:26 PM   #3
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Is the membership of this forum really at the level of sophomoric insults?

Can't we all just go camping.
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Old 07-02-2015, 07:36 PM   #4
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Is the membership of this forum really at the level of sophomoric insults?

Can't we all just go camping.
Considering that some people on this forum didn't study physics and don't even know what F=ma means, methinks the folks who were meant to be insulted may not realize that they have been.

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Old 07-02-2015, 07:40 PM   #5
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At the end of each and every day, F still equals ma.

Ole Issac had it figured out and printed it for us in 1687.

Thought I should post a reminder since there are a few here that seem to believe it is no longer valid.
F (force) = the amount of force it takes to open the fridge door?

M (mass) = my mass or the mass of the beer? My mass is about 180 lbs as measured in Terran units. The beer I'm not exactly.sure.

A (acceleration) = is that how much effort it takes to perform a 12oz curl, or is it measured otherwise?

He said with tounge firmly planted in cheek.

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Old 07-02-2015, 07:49 PM   #6
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Perhaps F=ma in your classical world, but in my quantum Einstein universe it doesn't always hold true.
Yesterday, today; maybe tomorrow. But not everywhere.
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Old 07-02-2015, 08:00 PM   #7
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Perhaps F=ma in your classical world, but in my quantum Einstein universe it doesn't always hold true.
Yesterday, today; maybe tomorrow. But not everywhere.
True. But if quantum entanglement is real, you could be making a gnat fart itself to death in an unknown part of the observable universe just by pressing the brake pedal on yer TV.

Think about it. It could happen.

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Old 07-02-2015, 08:19 PM   #8
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Huh, just a little old shop keeper, wife and mom of five, no idea what u r talking about. Off to camp
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Old 07-02-2015, 08:25 PM   #9
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Huh, just a little old shop keeper, wife and mom of five, no idea what u r talking about. Off to camp
Nor does anybody else in this thread. We're just spouting useless info we saw on the Science Channel. Have agreat weekend camping. Wish I was there with u.

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Old 07-02-2015, 08:40 PM   #10
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Add to that, the minimum stopping distance for an automobile is determined by the effective coefficient of friction between the tires and the road and has nothing to do with MASS. I did the math awhile ago here: http://www.airforums.com/forums/f516...ml#post1562434
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Old 07-02-2015, 08:50 PM   #11
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True but F=MA is the reason I would never want a Smartcar.
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Old 07-03-2015, 03:39 PM   #12
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"True but F=MA is the reason I would never want a Smartcar." A Smartcar can't tow much. They are towable four down, though, so if you have a MH you can use one as a toad.
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Old 07-03-2015, 04:00 PM   #13
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All well and good till the tires slip. Once the tire is locked, the rotor size is not relevant. Frictional forces increase with weight which is W=mg. Which really is F=ma.

Perry

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Add to that, the minimum stopping distance for an automobile is determined by the effective coefficient of friction between the tires and the road and has nothing to do with MASS. I did the math awhile ago here: http://www.airforums.com/forums/f516...ml#post1562434
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Old 07-03-2015, 04:05 PM   #14
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Well.......the F riggin rooster next door started crowing at 2:00 aM this morning and THAT = fried chicken
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