Hei,mă ajuta cineva?

Răspuns:
1) M=F*b
M=60*50=3000N*m
2)M=F*b+b/3=100*40+40/3=4000+40/3=4000+13,3=4013,3N*m
3)M=F*b=F*b+b/2=120*30+15=3600+15=3615N*m