| The Breakroom > The Water Cooler |
| Baffled a bit |
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| Bluechip:
If I arrange bits as in the pic. ie. Digital kitchen scale, Wixey height gauge and the compression spring, the press 'tare' the scale says zero ... [ The x bits are two ally discs, otherwise it falls over ... :palm: ] If I put 500g on the top of the spring and measure the height difference the Wixey says 2.18mm. So, a load of 500g will compress the spring by 2.18mm. The kitchen scale says 500g. BUT .... is this the same as a load of 4.905 Newtons ????? ie g/2 ???? Dave BC .... out of his depth.... I should KNOW this .... :loco: |
| David Jupp:
Yes. Assuming your local value of g isn't far from 'normal', and that the scale hasn't reached its limit. |
| John Rudd:
F= MxA Where F is Newtons, Mass is in Kilograms and A is acceleration |
| Bluechip:
David J. & John R Thanks ... I was getting myself all confused ... again :loco: I am a bit familiar with the F=MA equation, but ... Is it really 500g? Or does it only say that because it is on planet Earth. If someone weighs 98.1kg their mass anywhere in the universe is 10kg, only because they are on planet Earth do they 'weigh' 98.1kg ??? I think that's right, never been anywhere else to find out for sure ... :ddb: Dave BC |
| John Rudd:
You are mixed up with force mass and weight..... A 1kg mass exerts a force of 10 Newtons (rounded up if Gravity is10m/sec/sec) |
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