Solving Distributed Load Homework: Reaction Forces at A and B

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The discussion focuses on calculating the reaction forces at points A and B in a distributed load problem. The initial calculation for the reaction force at B was incorrectly derived as 1.5kN due to a mistake in the moment equation. The correct approach involves using the total load of 1.8kN and adjusting the moment calculation to reflect this. The correct reaction force at B is identified as 0.45kN after correcting the moment equation. Additionally, there is a query regarding the meaning of a dot notation at point A, indicating a need for clarification on notation used in structural analysis.
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Homework Statement


To find the reaction at A and B. (See image below)
DistributedLoad.jpg



Homework Equations


Moments and Area


The Attempt at a Solution


Area of load: (0.3)(6) = 1.8kN
Moments about A: -(6)(0.15) + RB(0.6) = 0 --> RB = 1.5kN


4. The error and question
I get the reaction force at B to be 1.5kN but the answer states that it is 0.45kN. What am I doing wrong?
 
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"-(6)(0.15) " is wrong.
 
Oh yes. It's -(1.8)(0.5). Found 1.8 in the step earlier and forgot to put that in. Thanks.
 
Also, what is that dot they have in the bar mean? At point A.
 

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