Question

For a satellite moving in an orbit around the earth, the ratio of its potential energy to kinetic energy is

• A. 1
• B. -1
• C. 2
• D.
  • 2

Answer 1

Answer: (D)

• 2

Answer 2

Kinetic energy of the satellite, $\mathrm { K } = \frac { \mathrm { GM } _ { \mathrm { E } } \mathrm { m } } { 2 \mathrm { r } }$

Potential energy of the satellite

,

Their corresponding ratio is