Question

Two Earth satellites, A and B, each of mass m, are to be launched into circular...

Two Earth satellites, A and B, each of mass m, are to be launched into circular orbits about Earth's center. Satellite A is to orbit at an altitude of 5230 km. Satellite B is to orbit at an altitude of 24400 km. The radius of Earth REis 6370 km. (a) What is the ratio of the potential energy of satellite B to that of satellite A, in orbit? (b) What is the ratio of the kinetic energy of satellite B to that of satellite A, in orbit? (c) Which satellite (answer A or B) has the greater total energy if each has a mass of 25.0 kg? (d) By how much?

Homework Answers

Answer #1

In an orbit, the gravitational force on satellite by Earth is equal to centripetal force of the satellite for revolution. Use this to find the required expression for kinetic and potential energy as shown below

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