Minimum force to prevent smaller block from slipping on larger block

[Arman777]

Friction Force on 2 blocks on a frictionless surface...

??
ohh wait I ll need N ok wait a sec

 

[Arman777]

Is $N= F_{mM}$ ??

 

[Doc Al]

Is $N= F_{mM}$ ??

Of course! (And you found N already.)

 

[Arman777]

Of course! (And you found N already.)

Finally

 

[Arman777]

Ok I solved.Thx