Question

A boy jumps to a height of 2 m on the surface of earth. Suppose the same boy is now on a planet where when he jumps, he escapes from its gravitational pull. If the density of the planet was the same as that of earth, what would be the maximum radius of the planet? (take radius of earth as 6400 km.)

Answer 1

the radius of the following plane the maximum radius of the following second plan it will be 39600