Satellite orbiting Earth

  • Thread starter aeromat
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Question:
A 460kg satellite is launched into a circular orbit and attains an orbital altitude of 850km above Earth's surface. Calculate the:


e) additional energy and speed required for the satellite to escape.

Attempt:
I found Ek to be 1.27*10^10 J
Thus, the total energy is -1.27*10^10 J
The binding energy is 1.27*10^10 J.

Wouldn't the additonal energy it needs be the binding energy?
The escape speed would be calculated by root of:

v(esc) = root of 2GM/r

But the answer at the back says otherwis.e... :roll:
 

Answers and Replies

  • #2
Janus
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What is the the total energy of an object moving at escape velocity?
 

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