Imagine that you are in a spacecraft orbiting around the earth in a circle of radius `7000 km` (from
Channel: Doubtnut
Date: 2020-07-26

Imagine that you are in a spacecraft orbiting around the earth in a circle of radius `7000 km` (from the centre of the earth). If you decrease the magnitude of mechanical energy of the spacecraft `-`  earth system by `10%` by firing the rockets, then what is the greatest height you can take your spacecraft above the surface of the earth? [`R_(e) = 6400 km`]