Question

Ajutatima va implor! ​

Answer 1

Răspuns:

a)

G =mg=2kg x 10 N/kg= 20N

b)

S1 = 5 x 10 cm^2 = 50×10^-4 m^2

P1 = G/S1 = 4×10^3 Pa

S2= 10×20 cm^2= 200×10^-4 m^2

P2=G/S2=1×10^3 Pa