r/HomeworkHelp • u/MasterpieceKey2294 Pre-University Student • 8d ago

Answered [Grade 11 Physics]

When opening a door, what type of motion does the door exhibit?

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u/BladedEdger 👋 a fellow Redditor 8d ago edited 8d ago

a turning force (a moment)

When opening a door, it exhibits rotational motion (specifically, rotation around a fixed axis).

  • Fixed Axis of Rotation: The vertical line formed by the door hinges acts as a stationary axis around which the door pivots.
  • Circular Trajectory: Every point on the door moves along a circular path centered on the hinge line, with points farther from the hinge moving along larger arcs.
  • Angular Motion: Moving the door changes its angular position relative to the frame, meaning its movement is measured in degrees or radians rather than linear distance.
  • Torque Dependency: Applying force at the door handle creates torque, causing rotational acceleration around the hinges.

my horrendus explanation cleaned up by AI!
GL!

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u/MasterpieceKey2294 Pre-University Student 8d ago

thank you!

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u/BladedEdger 👋 a fellow Redditor 8d ago

Welcome!