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Student Question

Secondary I • 9mo.

Hello, 


I know that a doorknob has a bi-directional rotational motion, but I don't know how to draw this type of movement. Can you help me please ?

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Explanations (1)

  • Explanation from Alloprof

    Explanation from Alloprof

    This Explanation was submitted by a member of the Alloprof team.

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    Team Alloprof • 9mo.

    Hello Adorable Moose! 

    Thank you for your question 😊 

    Rotational movement is performed by a part or an object that moves around a circular path on an axis. This is why curved arrows illustrate this type of movement.

    In addition, bidirectional movements can be carried out in either direction, so the curve must have two arrowheads.

    Do not hesitate to write to us again if you have any other questions!