A Person Pushes on a Doorknob with a Force of 5.00

question 6

Multiple Choice

A person pushes on a doorknob with a force of 5.00 N 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)2.00 kg∙m²
• B)1.00 kg∙m²
• C)12.5 kg∙m²
• D)8.00 kg∙m²
• E)6.40 kg∙m²