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Launc
@Launc
July 2022
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Через какое время тело, брошенное вертикально вверх с начальной скоростью 50м/c достигнет высоты 100м?
V0=50м/c
h=100м
g=10м/c^2
t-?
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Answers & Comments
GurgenSaakyan
Дано:V0=50м/c,h=100м,
g=10м/c^2
Найти:t.
Решение: h=Vo*t-(gt^2)/2
100=50t-5t^2 | :5
20=10t-t^2
t^2-10t+20=0
D=100-80=20
t=(10
+-
√20)/2=5+-√5
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Answers & Comments
Найти:t.
Решение: h=Vo*t-(gt^2)/2
100=50t-5t^2 | :5
20=10t-t^2
t^2-10t+20=0
D=100-80=20
t=(10+-√20)/2=5+-√5