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What is kg wt?by sphyics
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#1
May610, 04:37 PM

P: 103

i know its a unit for force... i'm intrigued by the relation 1kgwt=9.8N?
by dimensional analysis L.H.s [M^{2}L^{1}T^{2} {since wt=kgm/s^{2}} R.H.S [M^{1}L^{1}T^{2} i understand i'm wrong somewhere, but i'm not able to figure it out, so pls help me :) Also how to get the relation between both.( think 9.8 is the contribution of 'g') 


#2
May610, 04:44 PM

Mentor
P: 15,170




#3
May610, 04:52 PM

P: 103

and how to get the relation 1kgwt=9.8N mathematically. 


#4
May610, 04:57 PM

Mentor
P: 15,170

What is kg wt?
You can't derive it. The kilogramforce (sometimes called the kilogramwt) is defined as the force needed to make a one kilogram of mass accelerate by 9.80665 m/s^{2}.



#5
May610, 05:29 PM

P: 566

W = ma = (1 kg)(9.81 m/sē) = 9.81 N = 1 kgwt kgwt is an arbitrary defined unit for force, just like 1 lb = 4.448 N 


#6
May810, 12:18 PM

P: 103




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