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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: