Determine the horizontal reaction at support $A.$

Express your answer as an expression in terms of the variables $w$ and $L$ and any necessary constants.

Part B

Determine the vertical reaction at support $A.$

Express your answer as an expression in terms of the variables $w$ and $L$ and any necessary constants. Make your answer positive if the reaction is upward, negative if the reaction is downward.

Part C

Determine the vertical reaction at support $B.$

Express your answer as an expression in terms of the variables $w$ and $L$ and any necessary constants. Make your answer positive if the reaction is upward, negative if the reaction is downward.

Figure

Determine the vertical reaction at support $C.$

Express your answer as an expression in terms of the variables $w$ and $L$ and any necessary constants. Make your answer positive if the reaction is upward, negative if the reaction is downward.