434 



THE HUMAN MOTOR 



FIB., 293. ' 



Neglecting static efforts the work done was : 

 18,000 X 2 X 70 



18,000 (3 + -9) + 



16 



= 230,000 kgm. 



To sum up the foregoing results : The transportation of loads 

 varying from 60 to 80 kg. and a total distance traversed (loaded 



Fig. 294. Subject No. 2 is pulling a heavier load than 

 subject No. 1. 



