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.
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.
On the Earth, 49 Newtons.
F = ma
= 5 kg x 9.8 m/s2
= 49 N
5 kilonewtons = 1,124.045 pounds force.
5 kg is equal to 49.05 newtons.
1
I just read that you can weigh anything on it.
A Tubular Spring scale.
There is only one metric system. The units used for your weight would be Newtons.
295 newtons = about 66.32 pounds.
20.5 newtons equal about 4.6 pounds.
About 5mN (five milli Newtons)
newtons
Newtons
5 Newton = 500,000 Dyne.
0.51 kg
I just read that you can weigh anything on it.
5N equals 0.51kg
5
A Tubular Spring scale.
5 newton
It weighs 49.3728 newtons. Trust me I got it right on my test.
The N on a spring scale should measure newtons but I'm not 100% sure.