The two uniform $6-kg$ bars $DC$ and $EF$ are fixed $($welded$)$ together at $E.$ At the instant $=60$

$BC$ has an angular velocity $=2ra\frac{d}{s}$ and an angular acceleration $=4ra\frac{d}{s^2}.($Figure $1)$

Determine the magnitude of the normal force $N_E$ which $DC$ exerts on $EF$ at $E.$

Express your answer to three significant figures and include the appropriate units.

$\{$:$N_E=,]$

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Part B

Determine the magnitude of the shear force $V_E$ which $DC$ exerts on $EF$ at $E.$

Express your answer to three significant figures and include the appropriate units.

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Part C

Determine the magnitude of the moment $M_E,$ which $DC$ exerts on $EF$ at $E.$

Express your answer to three significant figures and include the appropriate units.

$\{$:$M_E=]$

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