The Earth's Gravity Exerts No Torque on a Satellite Orbiting

question 45

Multiple Choice

The Earth's gravity exerts no torque on a satellite orbiting the Earth in an elliptical orbit.Compare the motion at the point nearest the Earth (perigee) to the motion at the point farthest from the Earth (apogee) .At the point closest to the Earth:

• A) the angular speed will be greatest although the linear speed will be the same.
• B) the speed will be greatest although the angular speed will be the same.
• C) the kinetic energy and angular momentum will both be greater.
• D) None of the above.

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