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Author Topic: Colliding bodies do not loose mass as fragment ejecta  (Read 3099 times)

Prometech

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Colliding bodies do not loose mass as fragment ejecta
« on: August 27, 2015, 11:28:27 PM »
Objects do not loose mass from large scale impact events as fragment ejecta, I have run several simulations of large scale collisions between the earth and moon, and the earth does not loose any mass in the form of fragments.

C7

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Re: Colliding bodies do not loose mass as fragment ejecta
« Reply #1 on: September 02, 2015, 12:34:07 AM »
It should be losing mass, I'll test it here to see what's up.

Prometech

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Re: Colliding bodies do not loose mass as fragment ejecta
« Reply #2 on: September 19, 2015, 12:38:12 AM »
For example, I smashed the moon into the earth, and earth gained 1% mass. Even in collisions at 40+ Kilometers per hour, the impacted body seems to gain mass instead of losing it to debris.

C7

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Re: Colliding bodies do not loose mass as fragment ejecta
« Reply #3 on: September 20, 2015, 10:20:17 AM »
Managed to get in some testing time on this problem. Seems there is indeed a discrepancy in the transferred mass.

I'll add it to the list of confirmed issues. Thanks for the report.

Prometech

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Re: Colliding bodies do not loose mass as fragment ejecta
« Reply #4 on: September 21, 2015, 05:30:11 AM »
Just out of curiosity, how big is the discrepancy that you found? I dont know the math behind the collisions so I have no Idea how to derive the correct value of mass transference for myself XD.