Solving Distributed Load Homework: Reaction Forces at A and B

[Air]

Homework Statement

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

Homework Equations

Moments and Area

The Attempt at a Solution

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

 

[radou]

"-(6)(0.15) " is wrong.

 

[Air]

Oh yes. It's -(1.8)(0.5). Found 1.8 in the step earlier and forgot to put that in. Thanks.

 

[Air]

Also, what is that dot they have in the bar mean? At point A.