A system consists of three masses `m_(1)` , `m_(1)` , `m_(1)` , `m_(2)` and `m_(3)` connected

A system consists of three masses `m_(1)` , `m_(1)` , `m_(1)` , `m_(2)` and `m_(3)` connected by a string passing over a pulley `P` . The mass `m_(1)` hangs freely and `m_(2)` and `m_(3)` are on a rough horizontal table (the coefficient of friction=mu) The pulley is frictionless and of negligible mass. The (Assume `m_(1)=m_(2)=m_(3)=m`).

[magiclessbrat]

I am here after mr sir's class and he was right😂😂

[ShivKumarvyas]

I was getting confused because I forgot to check one point that M₁ = M₂ = M₃ hence my answer was not coming.