New Question August 10, 2000

Consider the various positions of the satellite as it orbits the planet as shown. With respect to the planet, in which position does the satellite have the maximum

a) Speed?
b) Velocity?
c) Momentum?
d) Kinetic Energy?
e) Gravitational potential energy?
f) Total energy?

Questions taken from "Conceptual Physics"

In order to see the answer, place your cursor on the upper left hand corner of the black rectangle below and press on your left mouse button. Then drag your cursor to the bottom right corner while continuing to hold down the left mouse button.

The satellite has the greatest speed, velocity, momentum, and kinetic energy at the perigee, position A. It has the greatest gravitational energy at its farthest position, the apogee at C. Total energy, KE+PE, is the same at all positions.


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