Moment/Shear Diagram Quick Question

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Homework Statement


upload_2018-5-4_23-30-42.png


Homework Equations

The Attempt at a Solution


How come the pins at B and E don't affect the shear or moment diagram?
 

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lc99 said:
How come the pins at B and E don't affect the shear or moment diagram?
Because there are no vertical forces applied to the ABCDEF system there.
 

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