Posted by **justin** on Monday, July 1, 2013 at 5:56pm.

His spacecraft, Vostok I, was a sphere about 2.3 m in diameter, and it reached a maximum altitude above Earth’s surface of 327 km. What was the spacecraft’s speed at this point in its orbit?

- general physics -
**Elena**, Monday, July 1, 2013 at 6:23pm
the gravitational constant G =6.67•10⁻¹¹ N•m²/kg²,

Earth’s mass is M = 5.97•10²⁴kg,

Earth’s radius is R = 6.378•10⁶ m.

r=R+h =6.378•10⁶ +0.327•10⁶ =...

ma=F

F =G•m•M/r²

ma=mv²/r

G•m•M/r² =mv²/r

v=sqrt(GM/r)=...

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