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Asked by tayeb to James, Marcus, Martin, Rob, Suzanne on 11 Mar 2012.
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James Boone answered on 9 Mar 2012:
Newtons’ second law of motion tells us how quickly something with mass M will accelerate if we push it with a force F. The equation is F=Ma. It can also be thought of as saying that the force acting on an object is it’s rate of change of momentum.
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Robert Thompson answered on 9 Mar 2012:
Basic form
F=Ma
The Force you apply something is equal to the the mass of that thing multiplied by its how much you make it accelerate
look at this
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Martin Zaltz Austwick answered on 9 Mar 2012:
F=ma.
The basic idea is – you push something, it moves in the direction it’s pushed in. If you want to push a heavy object just as fast – you had better push harder!
(More accurately: the net force on an object causes it to accelerate (change its speed) in the direction of the force.)
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Marcus Gallagher-Jones answered on 10 Mar 2012:
Newtons second law of motion relates how quickly something of a given mass will change its speed in a given direction if a force acts to push it in that direction.
F=Ma
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Suzanne McEndoo answered on 11 Mar 2012:
F = m a
or
Force is mass times acceleration.So if you push something, it will accelerate (chance velocity where velocity is speed in a particular direction). If you push a bigger something the same amount, it will change it’s velocity less, and a smaller something will change it’s velocity more.
It also tells us that if something is trundling along without changing it’s velocity, there’s no force (or no total force) acting on it. If something moving is slowing down, you know there’s a force acting on it.
Comments
bolzanoweierstrass commented on :
Force is proportional to rate of change of momentum. F=ma is a special case when mass is constant.