Sahay Sir > Question Answers > Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) > An artificial satellite (mass m) of a planet (mass M) revolves in a circular orbit whose radius is n times the radius R of the planet in the process of motion the satellite experiences a slight resistance due to cosmic dust. Assuming the force of resistance on satellite to depend on velocity as F=av2 where ‘a’ is a constant caculate how long the satellite will stay in the space before it falls on to the planet’s surface.

An artificial satellite (mass m) of a planet (mass M) revolves in a circular orbit whose radius is n times the radius R of the planet in the process of motion the satellite experiences a slight resistance due to cosmic dust. Assuming the force of resistance on satellite to depend on velocity as F=av2 where ‘a’ is a constant caculate how long the satellite will stay in the space before it falls on to the planet’s surface.

A satellite revolving in a circular equatorial orbit of radius R=2.0×10 4 from west to east appears over a certain point at the equator every 11.6h. From these data the mass of the earth is x×10 24 kg Find x. G=6.67×10 −11 Nm 2 Kg −2