Week - 1 - Consistency of units

1. gm mm ms

mass 1kg=1000gm

length 1m=1000mm

time 1s=1000ms

force 1N= mass*ACc(1 KG*m/s2)= 1000*1000/(1000)^2= 1 gm*mm/ms^2

velocity 56kmph= 56 *10^6/3600*10^3=56/3.6= 15.556 mmpms

stress 1Pa = 1 N/m2= 10^-6 gm/msmm

energy 1Nm= 1000 gm*mm^2/ms^2

density 1KG/m3= 10^3/10^9= 10^-6gm/mm3

youngs modulus 210GPa= 210*10^9*10^-6=210000 gm/msmm

gravity 9.8m/s2= 9.8*1000/10^6= 0.0098 mm/ms2

	mass	length	time	force	stress	energy	density	YoungsM	Velocity	gravity
kg cm ms	1	100	1000	10^-4	10^-8	0.01	10^-6	2100	1.5556	9.8*10^-4
kg cm s	1	100	1	100	0.01	10000	10^-6	210*10^7	1555.6	980
kg m s	1	1	1	1	1	1	1	210*10^9	15.556	9.8
g cm s	1000	100	1	10^5	10	10^7	0.001	2100*10^9	1555.6	980
g cm us	1000	100	10^6	10^-7	10^-11	10^-5	0.001	2.1	0.00155	0.98*10^-9
g mm s	1000	1000	1	10^6	1	10^9	10^-6	210*10^9	15556	9800
ton mm s	0.001	1000	1	1	0.001	1000	10^-12	210*10^6	15556	9800
slug ft s	0.068	3.28	1	0.223	10.758	0.7314	0.00193	2259.18*10^9	51.0237	32.144
kg mm s	1	1000	1	1000	0.001	10^6	10^-9	210*10^6	15556	9800
g cm ms	1000	100	1000	0.1	10^-5	10	0.001	210*10^4	1.5556	9.8*10^-4
kg mm ms	1	1000	1000	0.001	10^-9	1	10^-9	210	15.556	9.8*10^-3