I have been having problems with this question, I can't figure out at all how to do this, does anyone know? "Draw a sketch of yourself standing on a beach carrying a bag (perhaps containing some diving equipment) in your right hand. Identify the reaction force for each of the forces described below and show (by drawing arrows) the action and reaction pairs on the sketch that you made. You can draw separate sketches for clarity. Remember that action and reaction always act on different bodies! So don't forget to show the other body in the sketch. 1. Your weight force 2. The force exerted by the sand on you 3. The force that your hand exerts on the bag 4. The force that the bag exerts on the Earth "