The time period of revolution of moon around the earth is 28 days and radius of its orbit is `4xx10^
Channel: Doubtnut
Date: 09/02/2020

The time period of revolution of moon around the earth is 28 days and radius of its orbit is `4xx10^(5)` km. If `G=6.67xx10^(-11) Nm^(2)//kg^(2)` then find the mass of the earth.