The $600-$lb load is being hoisted at a constant speed using the motor $M,$ which has a weight of $90$ lb $.$ The beam has a weight of $45l\frac{b}{f}t$ and is fixed to the wall at A$.($Figure $1)$

Determine the magnitude of the resultant internal normal force acting on the cross section through point $B$ in the beam.

Express your answer in kilopounds to three significant figures. $$

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Part B

Determine the magnitude of the resultant internal shear force acting on the cross section through point $B$ in the beam.

Express your answer in kilopounds to three significant figures.

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Part C

Determine the magnitude of the resultant internal bending moment acting on the cross section through point $B$ in the beam.

Express your answer in kilopound$-$feet to three significant figures.

Figure

$1$ of $1$

$$

$\sqrt[9]{}$

darr$1$

vec

$?$

$M_B=$

$$

kip $*ft$

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