Answer to Question #302769 in Mechanics | Relativity for JIA

Question #302769

An object is in equilibrium if all the forces on it balance. The figure below shows a beam weighing 124 N that is supported in equilibrium by a 100-N pull and a force  at the floor. The third force on the bean is the 124-N weight that acts vertically downward.



1
Expert's answer
2022-02-28T10:38:59-0500

"F_x=100\\cos30\u00b0-124\\sin40\u00b0=6.9~N,"

"F_y=124\\cos40\u00b0-100\\sin50\u00b0=45.0~N,"

"F=\\sqrt{F_x^2+F_y^2}=45.5~N,"

"\\varphi=180\u00b0-90\u00b0-40\u00b0-\\arctan\\frac{F_x}{F_y}=41.3\u00b0."

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