Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > Estimate whether it takes more energy to get a satellite upto 1600km above the earth than to put in orbit there. Earth’s radius is 6400km. Does your answer remain same for height 3200km or for height 4800km?

Estimate whether it takes more energy to get a satellite upto 1600km above the earth than to put in orbit there. Earth’s radius is 6400km. Does your answer remain same for height 3200km or for height 4800km?

Calculate the velocity with which a body must be thrown vertically from the surface of the earth so that it may reach a height of 10R gravitational constant where R is the radus of the earth and is equal to 6.4×108m. (earth's mass=6×1024kg