If you take the FBD of CH, you will have pin reactions at C, D, E, H (with 2 unknowns at C and H, pin connections, and one unknown at D, E, pin connections but 2 forces members, so you know the direction of the forces). It makes 6 unknowns, that you can't solve with 3 equations.
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is it possible to take a FBD of CH without including the shovel part (FG)
If you take the FBD of CH, you will have pin reactions at C, D, E, H (with 2 unknowns at C and H, pin connections, and one unknown at D, E, pin connections but 2 forces members, so you know the direction of the forces). It makes 6 unknowns, that you can't solve with 3 equations.
@@fannysilvestri Yep, I realized after trying it! Thank you so much, your video was very helpful.
stop confusiing us