Question

three blocks of mass m1=m, m2=2m and m3=3m connected by two strings are placed on horizontal fristionless surface as shown in figure a horizontal force f is applied to mass m1 as shown in figure the common acceleration of the block​

Answer 1

F=(m1+m2+m3)a

F=(m+2m+3m)a

F=6ma

mg=6ma

a=g/6 or a=F/6m