Assertion: momentum's momentum | /r/HasProperty | 300 lbm
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text: For instance, if one player who is 300 lbm and running at 20 fps collides with a second player who is 190 lbm and standing still (0 fps), then the initial momentum of the two players is due entirely to the running player because momentum of the two players initially is: m 1 v 1 + m 2 v 2 = 300 lbm