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In 1865, Jules Verne suggested sending people to the Moon by launching a space capsule with a 207.9 m long cannon. The final speed of the capsule must reach 11.31 km/s. What acceleration would the passengers experience?

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    The average speeed in the cannon is Vav = V/2 (where V is the exit velocity), and the time the capsule takes to leave the barrel is t = L/Vav = 2L/V

    The acceleration rate a is V/t =

    a = V^2/(2L)

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