svp regarder limage fo m'aidez .... Pergunta de ideia deTripleh24

June 2021 1 98 Report

svp regarder limage fo m'aidez

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slyz007

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a) V=Dr/t donc Dr=V*t
Dr=27,8*0,75=20,85m

b) $D_{F}= \frac{ V^{2}}{2*g*A}= \frac{27,8^{2}}{2*9.81*0,6}=65,65m$

$V= \sqrt{2gAD_{F}}$

$V= \sqrt{2*9,81*0,4*65,65}=22,7m.s^{-1}$ soit 81,7 km/h

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