An aircraft weighing $10000 \mathrm{~N}$ is flying level at $100 \mathrm{~m} / \mathrm{s}$ and it is powered by a jet engine. The thrust required for level flight is $1000 \mathrm{~N}$. The maximum possible thrust produced by the jet engine is 5000

N. The minimum time required to climb $1000 \mathrm{~m}$, when flight speed is $100 \mathrm{~m} / \mathrm{s}$, is_____________s

An aircraft weighing $10000 \mathrm{~N}$ is flying level at $100 \mathrm{~m} / \mathrm{s}$ and it is powered by a jet engine. The thrust required for level flight is $1000 \mathrm{~N}$. The maximum possible thrust produced by the jet engine is 5000

N. The minimum time required to climb $1000 \mathrm{~m}$, when flight speed is $100 \mathrm{~m} / \mathrm{s}$, is_____________s

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