Force $F$ acts on the frame such that its component

acting along member $AB$ is $660$ lb $,$ directed from $B$

towards $A,$ and the component acting along member $BC$

is $540$ lb $,$ directed from $B$ towards $C.($Figure $1)$

Determine the magnitude of $F.$ Set $=60.$

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

$F=950lb$

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Part B

Determine the direction $$ of force $F.$

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

$=$

$($can you show how these answers were calculated step by step$)$ Thank you.