Question

1.un inel are greutatea de 0,03N.Daca un gram de aur costa 225 lei, ce pret are inelul?(g=10N/KG)

Answer 1

G=0,03 N
g=10 N/Kg
G=m•g
m=G/g
m=0,003N/10N/kg
m=0,0003kg=0,3g

1g.............225lei
0,3g............x lei

x=0,3•225/1
x=67,5 lei