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Convert Kgcm to nm

by Lorens
Tags: convert, kgcm
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Lorens
#1
Dec5-05, 12:30 PM
P: 29
We got 1.28 Kgcm

we turn cm to meter 128kgm

Then we turn it in to newton then we get about 1280NM

Problem is that i get some indication that this is wrong... is it?



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neutrino
#2
Dec5-05, 12:37 PM
P: 2,046
What's NM? And Kg m (or more generally Mass.Length) is not dimensionally the same as a Newton(Mass.Length.Time^-2).
Astronuc
#3
Dec5-05, 12:50 PM
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It looks like one is trying to develop a moment and force or torque?

If 1.28 Kgcm = 1.28 kg-cm, then multiply by 1 m / 100 cm to to get 0.0128 kg m.

As neutrino pointed out, kg is a unit of mass and Nt (or N) is a unit of force.

1 kg * 9.8 m/s2 = 9.8 kg-m/s2 = 9.8 Nt or

0.102 kgf = 1 Nt.

For units conversion, here is a nice reference -

http://www.projects.ex.ac.uk/trol/scol/ccforce.htm for force

In general - http://www.projects.ex.ac.uk/trol/scol/index.htm

Lorens
#4
Dec5-05, 05:02 PM
P: 29
Convert Kgcm to nm

Quote Quote by Astronuc
It looks like one is trying to develop a moment and force or torque?
If 1.28 Kgcm = 1.28 kg-cm, then multiply by 1 m / 100 cm to to get 0.0128 kg m.
As neutrino pointed out, kg is a unit of mass and Nt (or N) is a unit of force.
1 kg * 9.8 m/s2 = 9.8 kg-m/s2 = 9.8 Nt or
0.102 kgf = 1 Nt.
For units conversion, here is a nice reference -
http://www.projects.ex.ac.uk/trol/scol/ccforce.htm for force
In general - http://www.projects.ex.ac.uk/trol/scol/index.htm
I am not intrsted in what to do, i am intrested in what i am doing wrong, you say that 1kgcm is 0.01kgm, i don't get that. It is a torque for a motor.
Astronuc
#5
Dec5-05, 05:10 PM
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P: 21,880
This is a conversion of unit problem.

I was simply pointing out the to convert a length in cm to a length in meters, one multiplies by the a factor which relates the two.

for example 1 cm = 0.01 m, or 1 m = 100 cm. The conversion factor can be 0.01 m/cm or 100 cm/m.

If a torque is written in kgf-cm and one wishes to convert it to kgf-m, then one must multiply by 1 m/100 cm, and one will get

1 kgf-cm * 1 m/ 100 cm = 0.01 kgf-m.


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