The energy required to launch an orbiting satellite out of the Earth's gravitational influence is co

Question

The energy required to launch an orbiting satellite out of the Earth's gravitational influence is compared to the energy required to project a stationary object at the same height completely out of the Earth's influence. Which of the following is correct?

Professor PC Thomas Classes · Answer

An orbiting satellite already possesses positive kinetic energy due to its orbital motion. Therefore, the additional energy required to reach zero total energy (escape) is less than that required for a stationary object at the same height, which has zero kinetic energy initially.