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Home > Science > Physics   »   Pairs of forces

 
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Old Mar 19, 2007, 09:53 AM
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Pairs of forces

I do not understand this. Newtons 3rd Law claims every force is met with another opposite and equal force.

Why then when I punched a spackle wall it breaks?

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Old Mar 19, 2007, 10:27 AM   #2  
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I don't understand how you're using newton's third law to argue that it shouldnt.
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Old Mar 19, 2007, 10:51 AM   #3  
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Wait am I mixed up?

It says that every force has an opposite that is the same size and magnitude. How would you prove this?
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Old Mar 19, 2007, 11:19 AM   #4  
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Yes... but that has nothign to do with the wall breaking. You hit the board with a force greater than the materials strength. Thus it breaks.

The material exerts the same but opposite force on your hand, but your hand doesn't break because it's stronger..

I don't understand what you're confused about
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Old Mar 19, 2007, 12:02 PM   #5  
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Thank you very much. That was such a simple explanation, when my teacher talked bout it i was baffled.

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