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#2220 - ribocoon
Reply 0
(06/30/2014) [-]
If mass increases as velocity increases, and. velocity is relative to the observer, than is mass relative to the observer?
#2369 to #2220 - spikeasdfaak
Reply 0
(07/08/2014) [-]
mass itself doesn't change, just effective mass. it'll look like it has more mass, but it doesn't actually.
#2222 to #2220 - toncheky
Reply 0
(06/30/2014) [-]
Since gravitational force changes with mass, maybe it is but it's very small.