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An aeroplane taxis onto runway going 10 meter per second.If it can accelerate steadily at 3 meter per second square and its take off speed is 90m\s what length of runway will it need?
5 years ago

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oobleck
the time it takes to get from 10 m/s to 90 m/s, increasing by 3 m/s every second, is t = (90-10)/3 = 80/3 s
Sow recall that s = 10t + 3/2 t^2
5 years ago
henry2,
V^2 = Vo^2 + 2a*d.
90^2 = 10^2 + 6d,
d =
5 years ago

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