(a) If the zero of potential energy is at infinity, the total energy of an Orbiting satellite is negative of its kinetic/potential energy.

Question

Choose the correct alternative:

(a) If the zero of potential energy is at infinity, the total energy of an Orbiting satellite is negative of its kinetic/potential energy.

(b) The energy required to launch an orbiting satellite out of the earth’s gravitational influence is more/less tham the energy required to project a stationary object at the same height (as the satellite) out of the earth’s influence.

Answer 1

(a) Total energy of the satellite revolving in orbit is equal to the negative value of its kinetic energy.

(b) The energy required to launch an orbiting satellite out of the earth’s gravitational influence is less than the energy required to project a stationary object at the same height (as the satellite) out of the earth’s influence.