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How fast is a Falcon 9 stage 1 going when it touches ground? Rough estimates are OK. An upper limit would be helpful too.

I'm getting 5.5 m/s (12 mph) in simulation and wondering how reasonable this is. The stage is 25 tons and it's touching down with 10-15 tons of fuel---so a max weight of 35-40 tons.

Would this make for a destructive landing, a hard but survivable landing, or a standard landing (however smooth those tend to be)?

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