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Secondaire 5 • 1a

For F, What do they mean by a constant magnitude? A magnétisé is basically it's distance regardless of its direction. Probably not important but I'm curious why they say that in the answer booklet.

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Physique
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  • Explication d'Alloprof

    Explication d'Alloprof

    Cette explication a été donnée par un membre de l'équipe d'Alloprof.

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    Équipe Alloprof • 1a

    Thank you for your question!


    As stated in the textbook, speed is a vector. This means it has both a magnitude and a direction. In this example, magnitude is how fast the cyclists are going (in km/h, for example), while direction is where they are headed geographically at a given moment (north, south, east, west...).


    Therefore, as soon as a cyclist's speed increases or as soon as the cyclist turns (even if the change is ever so slight), their speed vector changes!


    This webpage on the Alloprof website explains the concept of speed:


    Don't hesitate if you need more help!

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