Please solve the question with both parts a and b. Thank you! A 0.5 m wide door, shown here from a-Hinge Knobtop view, has a rotational inertia of 0.8 kg m² asit rotates about its hinge at one end.A)F = 3NIf the door is initially at rest and a personcontinually pushes perpendiculalry on thedoor knob at the other end with a 3 N force, how long does it take to rotatethe door open by 90°?B) From the perspecive of the person pushing on the door, what is thedirection of torque vector?

Answered: Image /qna-images/answer/f52638d4-9371-429b-a336-8b2f54fe3f5e.jpg

Answered: A 0.5 m wide door, shown here from a…

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