Question

Calculați masa unui corp, dacă el produce o alungire de 10 cm asupra unui resort care are k de 10 N/cm

Answer 1

Delta l=10 cm
k=10 N/cm
F=k•Delta l=10 N/cm•10 cm=100 N
F=G=m•g
g=10 N/kg
m=G/g=100 N/10 N/kg
m=10 kg