Momentwm
Mae momentwm yn faint cadwrol mewn ffiseg, sef cynnyrch mas a buanedd corff.
Mae momentwm yn fesur fector sy'n cael ei gynrychioli gan y symbol P. Fe'i rhoddir gan yr hafaliad:-
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| Math | maint fector, generadur, maint corfforol  |
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 Ffeiliau perthnasol ar Gomin Wicimedia | |
lle cynrychiola P y momentwm, m y mas ac v y buanedd.
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