Please draw free body diagram of m1 , m2 , m3 , and also write the equations.
Answers
Acc. To me,
See Below
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Let us consider mass M1=x,M2=y,M3=z
On Mass 1
---------------> net accleration is a°
Fxy<----------- x ----------->F ( by External agent)
(Fxy=Force on x by y,
F shown in diagram)
Fnet=ma
F-Fab=xa°---------1
On mass2
--------------------------> net accl a°
Fyz <--------------- y----------->Fyx
(Fyz =Force on y by z,
Fyx=Force on y by x)
Fyx-Fyz=y*a°-------------2
On mass 3
--------------------------> net accl a°
z----------->Fzy
(Fzy =Force on z by y)
Fzy=z*a°------------------3
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I hope you understand my answer