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1 kg is not equal to 9.8 newton. It's the amount of mass that weighs 9.8 newton

on earth.

The weight of anything is

(object's mass) times (the local acceleration of gravity).

When the same mass moves to places with different gravity, its weight is different.

The acceleration of gravity anywhere on or near the surface of the earth is 9.8 meters per second2 .

The weight of 1 kilogram of mass anywhere on or near the surface of the earth is

(1 kilogram) times (9.8 meter per sec2) = 9.8 kilogram-meter/sec2 = 9.8 newton.

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Q: Why is 1 kg equal to 9.81 Newtons?
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1 newton per square mm is how many kg per square cm?

1 newton/mm2 is equal to 100 newtons/cm2.100 newtons is equal to a mass of 100 / 9.81.Mass acting on 1cm2 = 10.193 kg.


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