stuck on a physics problem..?
In 1865, Jules Verne proposed sending men to the Moon by firing a space capsule from a 220 m long cannon with final speed of 10.97 km/s. What would have been the unrealistically large acceleration experienced by the space travelers during their launch? (A human can stand an acceleration of 15g for a short time.)
Compare your answer with the free-fall acceleration, g (9.80 m/s2).
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Verified answer
v^2 = u^2 + 2as
gives: (10.97.10^3)^2 = 0 + 2a(220)
a = (120.34. 10^6)/440 = 273 km/s^2 ~ 28000g
uuch!
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