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Sahay Sir > Question Answers > MTG NEET Physics > Part 1 > Chapter 10 - Gravitation > Two solid spherical planets of equal radii R having masses 4M and 9M their centre are separated by a distance 6R. A projectile of mass m is sent from the planet of mass 4 M towards the heavier planet. What is the distance r of the point from the lighter planet where the gravitational force on the projectille is zero ?

Two solid spherical planets of equal radii R having masses 4M and 9M their centre are separated by a distance 6R. A projectile of mass m is sent from the planet of mass 4 M towards the heavier planet. What is the distance r of the point from the lighter planet where the gravitational force on the projectille is zero ?

Let A be the area swept out by the line joining the earth and the sun during February 1991. The area swept out by the line during a typical week in February 1991 is