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Morgarella [4.7K]
2 years ago
15

What cannot be rational??

Mathematics
1 answer:
julia-pushkina [17]2 years ago
4 0

Answer:

the 4th one

Step-by-step explanation:

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Flight time = 2* ascendent time

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sin(45) = Voy / Vo => Voy = Vosin(45) = 25.5 m/s * (√2) / 2 = 18.03 m/s

Vy = Voy - gt = 0  => Voy = gt = t = Voy / g

Use g = 10 m/s^ (it is an aproximation, because the actual value is about 9.81 m/s^2 depending on the latitud)

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This is the ascendant time going upward.

The flight time is 2*1.83 = 3.66 s

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Vx = x / t => x = Vx*t

Horizontal distance = xmax = 18.03m/s*3.66 s = 65.99 m

c) The time the ballon will be in the air was calculated in the part B, it is 18.03 s
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