Two blocks with masses m, and m2 are attached by a massless string that wraps around a frictionless pulley as shown in the diagram. AX The block on the incline (block 1) is also attached to a massless spring. There is friction between the block and the incline. The system is moving. At the point when block 1 is moving up the ramp and the spring has been compressed a length Ax from its equilibrium length, which of the following free body diagrams is correct for block 1? Note: the force vectors are not to scale O N fx T Fspring Fg O N T F spring Fg O N T Fspring Fo O N T F spring Fo O N T Fspring