Question

Homework: HW12: Angular Momentum & Static Equilibrium & Gravitation Deadline: 100% until Friday, November 22 at 11:59 PM Cumulative Problem 3 12 What speed is needed to launch a rocket due east near the equator into a low Earth orbit? Assume the rocket skims along the surface of Earth, sor Rę. Repeat the calculation for a rocket fired due west. 1) What speed is needed to launch a rocket due east near the equator into a low Earth orbit? (Express your answer to three significant figures.) km/s Submit 2) Repeat the calculation for a rocket fired due west. (Express your answer to three significant figures.) km/s Submit

Answer 1

Satellite speeds, surface speed of planet, and its relation to launching speed is discussed
Forr a satelt of mass mspeed v M, oluig rand planet of mass ebit speed GM where Ris distane of satellte frem the ceatre of planet Because Centaripetel Fore-Gravitational force GM 17

d the guen question Coams of eantoy CX1024 5-9172 -6437T0 (Padius of esath) ec6.378 X10 m 6.673 X10 XS.972 X 109 6.379 X106 7.905X10 S peeal of eartus Surfoue fv) ciranferece of eat 24 K hou2s 2 TT R 24x60x60 463.821 Ms Vs This speaet is fr 3est to east ie. dye cast

Now, Fos launcheng due east, Vardative speed of satelitk xb sofpet sped ofsufee 3 7.905 X10 VIanch +463.821 Catue oast V1amnch XiO3 7.4F For laundhig de wst, 7.905 Xj0 t 461.$21 doe const M/s 8-368 X103