The figure below shows two wooden blocks connected through a massless and frictionless pulley using a massless chain. Block 2 is sliding down the incline whose surface is not frictionless. Some of the interacting objects are the pulley and the chain, but it is upon you to decide which to include in the system. Present a free-body diagram for all the objects in the system using dotted lines to connect objects that form action-reaction pairs.Consider the positive x-axis in an upward direction along the inclined planes.

• A. Block 1: Tension along positive x, normal along positive y, kinetic friction along negative x, and gravity downwardsBlock 2: Tension along positive x, normal along positive y, kinetic friction along positive x, gravity downwards, action-reaction between the chains
• B. Block 1: Tension along positive x, normal along positive y, kinetic friction along negative x, and gravity downwardsBlock 2: Tension along positive x, normal along positive y, kinetic friction along positive x, gravity downwards, no action-reaction pair
• C. Block 1: Tension along negative x, normal along positive y, kinetic friction along positive x, and gravity downwardsBlock 2: Tension along positive x, normal along positive y, kinetic friction along positive x, gravity downwards, action-reaction between the chains
• D. Block 1: Tension along negative x, normal along positive y, kinetic friction along positive x, and gravity downwardsBlock 2: Tension along positive x, normal along positive y, kinetic friction along positive x, gravity downwards, action-reaction between the blocks

Answer: (A)