Répondre :
a) [tex]800 = 3.6 \sqrt{h*9.1} [/tex]
h = [tex]h = (800/3.6) ^{2} /9.1[/tex]
h = 5426 m
b) v=[tex]v=3.6 \sqrt{50*9.1} [/tex]
v=76km/h
h = [tex]h = (800/3.6) ^{2} /9.1[/tex]
h = 5426 m
b) v=[tex]v=3.6 \sqrt{50*9.1} [/tex]
v=76km/h