Physics, 27.08.2020 04:01, WindelCaceus123

Ao bater um tiro de meta, um goleiro imprime à bola uma velocidade de módulo V 0 = 30 m/s inclinada de um ângulo α com a horizontal, tal que sen α = 0,8 e cos α = 0,6. Admita que no local a resistência do ar seja desprezível e adote g = 10 m/s 2 . Supondo que a bola retorne ao solo sem ser interceptada por qualquer jogador, determine: a) a altura máxima (H) atingida por ela; b) a velocidade da bola no ápice do vôo; c) o seu tempo total de vôo ; d) o seu alcance horizontal.

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Ao bater um tiro de meta, um goleiro imprime à bola uma velocidade de módulo V 0 = 30 m/s inclinada...