Rocket Shot

Junes Verne in 1865 suggested sending people to the Moon by firing a space capsule from a barrel 245 meters long with a launch speed of 10.37 km / s. What would have been abnormally high acceleration experienced by space travelers during launch?

Use the equation v ² = u ² + 2AS.

u = initial velocity (in this case 0)
v = final velocity (1037000 m / s)
s is the distance (245 m)
a is the acceleration you are trying to find.

It is important to express v in m / s, since you are measuring distance in meters. It is also useful if you want to say that it is the equivalent of what many "G" (gravity = 1g = 9.8 m / s ²).

218.7442315 km / s / s
I use MS Excel and objective search function
I also know that distance = 1 / 2 * A * T
I also know that speed = A * T