Une barre de fer rigide de 1,80m
supporte à son extrémité Aune charge
pesant 245N et à son extrémité B
une charge pesant 343N. Quelle
force faut-il exercer pour soulever la
barre et en quel point faut-il la saisir
pour qu'elle reste horizontale?
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Ответ:
You're missing an apostrophe for "it's", because you are talking about a day and how it is going. When you using "its" it is talking about the possession someone/thing has. You also need to capitalize the "W" in "What" because that is the start of your question and sentence. Lastly, You need to put a question mark at the end of your question for ending punctuation.
Explanation: