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the two quantities are different - 5kg indicates the mass of the object, ie how much stuff it contains, a newton is a force, in this case a weight (a force produced by gravity, the mutual attraction of two objects with mass). The weight produced by 5kg depends on g, which is a function of how massive the other object is and how far away you are from its center. Assuming you mean 'how many newtons is 5kg on the surface of earth', g is about 9.81. To get the weight (in newtons) from the mass (in kg) all you do is multiply by g - so 5kg by 9.81 roughly equals 49 newtons. The apparent weight may be less than this. If you only want a rough estimate, then if we approximate the g from 9.81 to 10, then the force (in Newtons) is almost equal to the mass (in kg) multiplied by 10. Therefore 5kg is almost 50N (but actually less than 50). It is not accurate but it gives you an idea of the magnitude.

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15y ago
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9y ago

Mass is not equal to force. On or near the Earth's surface, 1 kg of mass weighs 9.8 newtons (about 2.2 pounds). It has different weigh in other places.

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13y ago

On the Earth, 49 Newtons.

F = ma

= 5 kg x 9.8 m/s2

= 49 N

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14y ago

5 kilonewtons = 1,124.045 pounds force.

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10y ago

5 kg is equal to 49.05 newtons.

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12y ago

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Q: How many newtons are on a scale of 5 newtons?
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