Draw and label the appropritate free-bodu diagrams if the

Question

Two masses, M_a(4kg) and M_b(6kg), are connected by a massless string and move on a horizontal surface. A horizontal pulling force, F, is applied to M_b. The coefficient of kinetic friction is u_k=0.25 between Ma and the surface, but u_k=0 between M_b and the surface.

Draw and label the physical situation.

Draw and label the appropritate free-bodu diagrams.

If the acceleration of the mass is 2.5 m/s², determine the tension in the spring.

Determine the net force acting on M_b.

Determine the value of the pulling force, F.