Concept explainers
The force of gravity between Earth and an Earth satellite is given by
To show:The speed of the satellite is
Explanation of Solution
Given:
If the satellite follows circular orbit, then the centripetal force is
Here,
Formula used:
The Newton’s equation for gravitational force is,
Here,
Calculation:
Consider a satellite is orbiting at a radius of
The expression for the centripetal force that keeps the satellite in the orbit is,
The radius of the orbit
Equate equation (1) and (3).
Conclusion:
Thus, the speed of the satellite is shown as
Chapter 14 Solutions
Conceptual Physics: The High School Physics Program
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