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loic57280
@loic57280
June 2021
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aidez moi s'il vous plaît c'est pour demain après midi
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Bellazelda
.trouver la distance donc 90 = 1h30=1.5 d= v*t =120*1.5=180 km
.trouver la vitesse moyenne donc v= d/t
d=180+250 =430 km
t=2h30+1h30 =4
v=430/4
v=107.5 km/h
v(m/s) = 107.5*1000km/h=107500m/h=107500/3600 = environ 29.9 m/s
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Thanks 1
loic57280
merci beaucoup
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.trouver la vitesse moyenne donc v= d/t
d=180+250 =430 km
t=2h30+1h30 =4
v=430/4
v=107.5 km/h
v(m/s) = 107.5*1000km/h=107500m/h=107500/3600 = environ 29.9 m/s