# physics dealing with orbital speed help pls asap?

on a typical mission the space shuttle (m=2.00*10^kg) orbits at an altitde of 700 km above the earths surface. dose the orbital speed of the shuttle depend on its mass?

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• Harold
Lv 4

No! The orbital speed is found by the formula:

V orbital = sqrt (GMp) / r

G is gravitational constant

Mp is the mass of the central object, in this case the earth

r is the orbital radius ( center of the earth to the center of the orbiting object)

So a baseball would orbit the earth at the same speed of the space shuttle if both are at the same altitude above the earth.