Le dispositif envoie des ondes ultrasonores dans plusieurs directions. Lorsque ces ondes percutent un obstacle, elles reviennent vers le détecteur de la source.
Selon le temps que met l’onde sonore à parcourir la distance voiture/obstacle puis obstacle/voiture, le radar estime la distance de l’obstacle à la voiture et informe le conducteur par des bips sonores.
Si 2 ms s’écoulent entre l’envoi de l’onde et la détection de celle-ci, à quelle distance l’obstacle se trouve-t-il ?
Faire un schéma pour vous aider à répondre à cette question Donnée : vitesse du son dans l’air : v= 340 m/s
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Ответ:
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IDK SORRY
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