A rectangular block with mass $m_1=580kg$ and length $L=0\mathrm{.}88m,$ is placed on a pivot point at a distance $x=0\mathrm{.}40L$ from its edge. The block is connected by a lightweight wire to an object with mass $m_2$ via a pulley, as shown in the figure. What is the mass $m_2$ knowing that the system is in equilibrium?

Select one:

a$.m_2=56kg$

b$.m_2=73kg$

c$.m_2=81kg$

d$.m_2=97kg$

Clear my choice