Ron Hitler Barrassi wrote:
> 
> 
> Kevin Gowen wrote:
> 
>> Ron Hitler Barrassi wrote:
>>
>>>
>>>
>>> Kevin Gowen wrote:
>>>
>>>> Ron Hitler Barrassi wrote:
>>>>
>>>>>
>>>>>
>>>>> Ron Hitler Barrassi wrote:
>>>>>
>>>>>>>> If that is the case, why did you suggest using a spring based 
>>>>>>>> device to measure the downward force 
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Because I have heard of Hooke's Law.
>>>>>>>
>>>>>>
>>>>>> But not the gravitional constant apparently.
>>>>>>
>>>>>>
>>>>>>>> when the correct way to measure force is it's effect on moving 
>>>>>>>> *a* body of mass?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> It's "effect"? I don't even know what that is supposed to mean. 
>>>>>>> Who says that a mass acted upon by a force must be in motion? 
>>>>>>> Push against a building as hard as you can. The building does not 
>>>>>>> move, but you are still exerting a force upon it.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> F=ma
>>>>>>
>>>>>> (I've highlighted the definite article to draw attention to your 
>>>>>> misreading)
>>>>>>
>>>>>
>>>>>
>>>>> I didn't elaborate on this point. You cannot use a spring to 
>>>>> measure a force. 
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Really? Don't tell Hooke.
>>>>
>>>>> It can only be used to measure weight (NB deliberate use of 
>>>>> "weight", not "mass" not "force", but "weight". 
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Weight is a force.
>>>
>>>
>>>
>>>
>>> Weight is a scalar. Force is a vector. 
>>
>>
>>
>> Weight, being a force and having magnitude and direction, is a vector.
> 
> 
> and weight is measured in kilograms.
> 
> Game. Set. Match.
> Thank you.
> 
> Must be tough for you playing against someone who is thinking several 
> moves ahead.
> 
> Oh and when I jump out the building to test the bathroom scales as you 
> suggested how much do I weigh?
> 
>>
>>> You don't weigh in the direction of anything.  
>>
>>
>>
>> In this planet, your weight is a force vector in the direction of the 
>> earth's center of mass. This is why you place a scale beneath you 
>> rather than on top of your head.
>>
>>> As you are in Florida your weight is in a different direction to 
>>> mine? (I'll let you off this one)
>>
>>
>>
>> Yes.
>>
>>>>> A spring, like your tug of war rope, requires a force at both ends 
>>>>> to expand, or contract.
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Yes. In the case of a bathroom scale that measures weight with a 
>>>> spring, the person standing on the scale provides *the* force at one 
>>>> end. The floor beneath the scale provides the force at the other end.
>>>>
>>>
>>> You missed the definite article again.
>>
>>
>>
>> You called "a" the definite article again.
> 
> 
> 'the' is the definite article?
> 
>>
>>> If a force act on a spring the spring will accelerate off in the 
>>> direction of the force. We would lose a lot of springs that way. 
>>
>>
>>
>> A force need not result in motion. Compress a spring between your 
>> thumb and a finger. Force is acting on the spring, 
> 
> 
> Forces are acting on the spring.
> 
>  From 2 directions, one from my finger and the other from my thumb. Two 
> digits, two forces. (The opposite of your Not "a force", two forces. 
> Equal and opposite, Newton's 3rd is satisfied. I can't compress a spring 
> with one finger, sort of like one hand clapping. Really this is too 
> easy. Take a break, Kevin.
> 

Did you take a break or my server ignored you?