Consider the beam shown in $($Figure $1).$ Suppose that P

$=30$ k

$.$

Figure$1$ of $1$

The illustration shows a horizontal beam AB rocker supported at the left end A and pin supported at the right end B on horizontal surfaces. Point load P is exerted at the midpoint of the beam, at a distance of $12$ feet from both ends. A trapezoidal load, measuring $3$ kilopounds per foot at the middle of the beam and $6$ kilopounds per foot at end B$,$ is exerted on the beam between the midpoint and B$.$ The X axis of the reference frame is oriented horizontally to the right, and the Y axis is oriented vertically upward.

Part A

Determine the normal reaction at A

$.$

Express your answer using three significant figures.

Activate to select the appropriates symbol from the following choices. Operate up and down arrow for selection and press enter to choose the input value type

NA

$=$

nothing

k

Request Answer

Part B

Part complete

Determine the x

component of the reaction at B

$.$

Express your answer using three significant figures.

Bx

$=$

$0$

k

Previous Answers

Correct

Part C

Determine the y

component of the reaction at B

$.$

Express your answer using three significant figures.