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2014-09-09T16:11:14+05:30

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If a persons weight = 37 Kg, it means the force of attraction by gravity on the person is 37*g.

The weighing machine measures the force acting on the platform where the person stands. This is done by using a calibrated spring which gets compressed. The force that the machine measures is = mass * gravity due to Earth.

Then the value of force is divided by the standard value of gravity and is displayed. So the value of mass is displayed.

So mass = 37 kg.

Air pressure and temperature dependence are some factors likely to cause small errors.

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2014-09-09T17:28:27+05:30
It will be lesser than 37 because of diffrent kind of forces in earth
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because of what forces ? the same forces act on weighting machine and the effect is cancelled.