A Person Pushes on a Doorknob with a Force of 5.00

question 38

Multiple Choice

A person pushes on a doorknob with a force of 5.00 N. The direction of the force is at an angle of 20.0° from the perpendicular to the surface of the door. The doorknob is located 0.800 m from axis of the hinges of the door. The door begins to rotate with an angular acceleration of 2.00 rad/s². What is the moment of inertia of the door about the hinges?

• A)4.28 kg∙m²
• B)7.52 kg∙m²
• C)1.88 kg∙m²
• D)0.684 kg∙m²
• E)2.74 kg∙m²

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Expenses associated with the day-to-day operations of a business, excluding the cost of raw materials and direct labor.

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