10.-(5 Points) An inventor wants to launch small satellites into orbit by launching them straight up from the surface of the earth, at very high speeds. a) With what speed should he launch the satellite if it is to have a speed of 500 m/s at a height of 400 km? Ignore air resiştance. b) By what percentage would your answer be in error if you used a flat earth approximation?

Fig: 1

Fig: 2

Fig: 3

Fig: 4