Q. A satellite with kinetic energy $E_{k}$ is revolving round the earth in a circular orbit. How much more kinetic energy should be given to it so that it may just escape into outer space
A) $E_{k}$
B) $2\ E_{k}$
C) $\frac{1}{2}E_{k}$
D) $3\ E_{k}$
Explanation
(a) Binding energy = $-$ kinetic energy
And if this amount of energy $(E_{k})$ given to satellite then it will escape into outer space
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.