A satellite is revolving round the earth in circular orbit

A satellite is revolving round the earth in a circular orbit with a velocity of 8km/s. at a height where acceleration due to gravity is 8m//s^(2) . How high is the satellite from the earth ? (Take R = 6000 km)

A satellite is revolving round the earth in a circular orbit of radius r and velocity upsilon_(0) . A particle is projected from the satellite in forward direction with realative velocity upsilon = (sqrt(5//4) - 1) upsilon_(0) . Calculate its minimum and maximum distances from earth's centre during subsequent motion of the particle.

A satellite is revolving round the earth in a circular orbit of radius r and velocity upsilon_(0) . A particle is projected from the satellite in forward direction with realative velocity upsilon = (sqrt(5//4) - 1) upsilon_(0) . Calculate its minimum and maximum distances from earth's centre during subsequent motion of the particle.