Question

Rezolvareaaaaa va roggg

Answer 1

Răspuns:

a)m2: Ox:T-Ff2=m2a (1)

      Oy:N1=m1g

m1:Ox: F-Ff1-T=m1a(2)

     Oy:N2=m2g

Ff1=μN1=μm1g

Ff2=μN2=μm2g

adunam relatiile 1 si 2

F-μm1g-μm2g=a(m1+m2)

a=(F-μm1g-μm2g)/(m1+m2)

b)facem raport intre relatiile 1 si 2

$\frac{T-Ff2}{F-T-Ff1} \ = \frac{m2}{m1}$

m1T-m1Ff2=m2F-m2T-m2Ff2

T=m2F/(m1+m2)