Question

Three blocks with masses m1 = 4.08kg, m2 = 2.07kg, and m3 = 17.3kg are shown in the diagram. What must the value of |F| be to keep m1 and m2 stationary with respect to m3?

Answer 1

Figure

Answer 2

at limited point F(2) balances with F(1) where m(2) is greater than m(2) so both of them be constant with respect to m(3) for any external force F