THE ANSWER GIVEN IN BOOK IS "both have same speed root gR " PLZ EXPLAIN HOW 2 artificial - Physics - Gravitation

Question

THE ANSWER GIVEN IN BOOK IS "both have same speed root gR "
PLZ EXPLAIN HOW
2 artificial satellites one close to the earth and other away are
revolving around the earth Which of them has larger speed ?

Vijay Shankar Yadav · Accepted Answer

Dear Student,
we have for revolving in a orbitcentriuagal force on stelliet =gravitational force mv2r=GMmr2     ( here r is radius of orbit )v=GMrv inversely proportional to square root r so  close one will have greater velocity and far one  will have  slower velocity 
Regards

THE ANSWER GIVEN IN BOOK IS "both have same speed root gR. " PLZ EXPLAIN HOW. 2 artificial satellites one close to the earth and other away are revolving around the earth. Which of them has larger speed ?

THE ANSWER GIVEN IN BOOK IS "both have same speed root gR. "
PLZ EXPLAIN HOW.
2 artificial satellites one close to the earth and other away are revolving around the earth. Which of them has larger speed ?