A satellite follows the elliptical orbit shown in FIGURE P12.77. The only force on the satellite is

Question:

A satellite follows the elliptical orbit shown in FIGURE P12.77. The only force on the satellite is the gravitational attraction of the planet. The satellite€™s speed at point a is 8000 m/s.
a. Does the satellite experience any torque about the center of the planet? Explain.
b. What is the satellite€™s speed at point b?
c. What is the satellite€™s speed at point c?

Planet bọ 24,000 km ba 9000 km 30,000 km FIGURE P12.77