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  4. A planet's radius is 2/3 times and mean density is 4/5 times than that of earth. If an astronaut can jump to a maximum height of 1.5m on the earth, with the same effort, the maximum height he can jump on the planet is

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Q. A planet's radius is $2/3$ times and mean density is $4/5$ times than that of earth. If an astronaut can jump to a maximum height of $1.5m$ on the earth, with the same effort, the maximum height he can jump on the planet is

NTA AbhyasNTA Abhyas 2020

Solution:

$0.8 \, m$