Concept explainers
A spaceship in circular orbit about the moon is
a. Show that the period of the spaceship is 2.2 h.
b. Show that the speed of the spaceship relative to the moon is about 5800 km/h.
(a)
To show:The period of the spaceship is
Explanation of Solution
Given:
The radial distance is
Formula used.
The expression for time for orbiting Earth is,
Here,
Calculation:
Consider the mass of moon as
The period of the spaceship is,
Conclusion:
Thus, the period of the spaceship is
(b)
To show:The speed of spaceship relative to the moon is about
Answer to Problem 41A
The speed of the spaceship relative to the moon is about
Explanation of Solution
Given:
The radial distance is
Formula used:
The expression for orbital speed is,
Here,
Calculation:
Consider the mass of moon as
The speed of the spaceship is,
Conclusion:
Thus, the speed of the spaceship relative to the moon is approximately equal to
Chapter 14 Solutions
Conceptual Physics: The High School Physics Program
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