22. REASONINGAs discussed in Conceptual Example 7, the same net force is required on the moon as on the earth. This net force is given by Newton’s second law as ΣF= ma, where the mass mis the same in both places. Thus, from the given mass and acceleration, we can calculate the net force. On the moon, the net force comes about due to the drive force and the opposing frictional force. Since the drive force is given, we can
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