Question
8
![In Jule Verne's 1865 story with this title, three men went to the moon in a shell fired from a
giant canon. (a) Find the minimum muzzle speed needed to shoot a shell straight up to a
height above the earth equal to the earth's radius R. (b) Find the minimum muzzle speed that
would allow a shell to escape from the earth completely.
(a)
2 Projectile, mass m
r₂ = 2RE
1
r₁= RE
Earth, mass me,
(b)
r₂ = 00
2 Projectile, mass m
1
r₁= RE
Earth, mass me,](https://content.bartleby.com/qna-images/question/833792d2-9499-424e-ab3e-198d79f35647/85de653a-a9ae-495a-8ba3-d4c6cee40288/z0hbwm3_thumbnail.jpeg)
Transcribed Image Text:In Jule Verne's 1865 story with this title, three men went to the moon in a shell fired from a
giant canon. (a) Find the minimum muzzle speed needed to shoot a shell straight up to a
height above the earth equal to the earth's radius R. (b) Find the minimum muzzle speed that
would allow a shell to escape from the earth completely.
(a)
2 Projectile, mass m
r₂ = 2RE
1
r₁= RE
Earth, mass me,
(b)
r₂ = 00
2 Projectile, mass m
1
r₁= RE
Earth, mass me,
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