How strong Boros' kick was to send Saitama to the moon

So I got bored and decided to calculate how strong it was(Mainly I just wanted to do a comparison to how much force Saitama could withstand vs. Goku in base form[Goku lifts just under 40 tons, fun fact.]). So I did stuff.
Force in Newtons = Mass in kg x Acceleration in meters/second squared
First, how long did it take for Saitama to reach the moon?
About 3 seconds.
How far is Moon from Earth?
238,900 miles.
238,900 / 3 = 79633.3333333 miles per second. We convert that to m/s^2, we get
621.32474 m/s^2
Saitama's official weight is 70 kg. So we multiply that with our acceleration and we get a force of
43492.7318 newtons. Converted to pounds, that's 9777.555039915036 pounds...Not even 5 tons. Seems kind of wrong.
I'm pretty sure I did something wrong, this is the first time I used F=MA. So...
Thoughts? Critiques?

 

You're using velocity, not acceleration? Pretty sure acceleration can't be found based on the info provided.[DOUBLEPOST=1469127747][/DOUBLEPOST]I could be wrong there. But aside from that, you're not accounting for wind resistance, fighting gravity, or breaking through the atmosphere.

 

You also need to state which iteration of Goku: which saga, training with whom, after having fought whom, etc. The dude powers up really quickly.

 

I tried to do some (probably highly flawed) math on this that accounts for gravity. Position function.

s(t) = –4.9t^2 + v0t + h0

Where t represents time, v0 represents the initial velocity, and h0 represents the initial height.

238,900 miles = 384472282 meters

s(3) = 384472282 = -4.9(3)^2 + v0(3) + 0

Solve for v0, and we get:

128157427.33... = -4.9(3) + v0
v0 = 128157442.0333... m/s

Full position function:

s(t) = -4.9(t)^2 + 128157442.0333...(t) + 0

Take the derivative to get the velocity function:

v(t) = -9.8(t) + 128157442.0333...

Get initial velocity:

v(0) = 128157442.0333... m/s

Using initial velocity as acceleration, he was launched with a force of:

F = 70 * 128157442.0333 = 8971020942.331 Newtons, or a 2,016,765,743.4153 pound-force. That's a 900,341.850 ton-force.[DOUBLEPOST=1469130310][/DOUBLEPOST]i am going to assume I made lots of logic errors[DOUBLEPOST=1469130739][/DOUBLEPOST]using your initial reasoning with the time based method:

acceleration = final velocity - initial velocity / final time - initial time

a = 128157412.63333333 / 3 = 42719137.544... m/s^2

Plus 9.8 m/s^2 to account for gravity, and you get 42719138.344... m/s^2

F = 70 * 42719138.344... = 2990339684.08 Newtons, or 672,255,106.194 pound-force and 300,113.887 ton-force.

 

How strong? Fairly.

 

Lmao you kids and your which anime character is stronger