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Exercício de parabola
Exercício:
A trajetoria de uma pedra lançada ao ar corresponde ao trecho da parábola
dada y=-10x/2+40x(em metros)
Determine:
a)Quando a pedra estiver a uma altura de 20 metros qual será seu deslocamento horizontal?
b)Qual a altura máxima atingida pela pedra?
a)6
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