Problem $6\mathrm{.}33$

Suppose that P$1$P$1=20$ kNkN$,$ P$2$P$2=22$ kNkN$,$ and P$3$P$3=26$ kNkN$.($Figure $1)$

Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension.

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FBC $=$

Part B

Determine the force in member HC of the bridge truss.

Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension.

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

FHC $=$

Determine the force in member HG of the bridge truss.

Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension.

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

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FHG $=$