- #1
ccsmarty
- 17
- 0
Homework Statement
An unmanned spacecraft is in a circular orbit around the moon, observing the lunar surface from an altitude of 52.0 km. To the dismay of scientists on earth, an electrical fault causes an on-board thruster to fire, decreasing the speed of the spacecraft by 27.0 m/s.
If nothing is done to correct its orbit, with what speed (in km/h) will the spacecraft crash into the lunar surface?
Homework Equations
mass of moon = 7.36*10^22 kg
radius of moon = 1.7374*10^6 m
The Attempt at a Solution
This is what I tried, but I got the wrong answer. Can someone please tell me what I did wrong.
Thanks in advance.