A full suit of battlefield plate harness weighs about the same a a modern soldier's gear (30kg), since that's the maximum weight a soldier can carry in battle and still move easily. Jousting armour could be heavier, but people didn't wear that in battles. If a woman can wear modern military gear, she can wear plate armour. Obviously, small women struggle a lot with that weight, but there are women who carry that level of weight in armies in today's age. Lighter forms of armour weighed less than that.
Women didn't wear European plate armour because late mediaeval Europe didn't have women soldiers, except in siege defences where everyone had to defend the castle. In societies where women fought more often, like the Scythians or Japan, they wore the same forms of armour as the men (lamellar, in these cases, with some plate in Japan). If the Scythians had the metallurgy to make plate armour, they would probably have worn it.
She's able to stand up wearing plate armour easily, and she's not She-Hulk.
As for weapons, a longsword was about 1.5kg or so. That's substantial, but a child could pick that up with 2 hands and stab someone with it. You don't need a lot of strength to wield those weapons.
I do think the number of women capable of drawing a 120lb longbow is miniscule, though, so women archers would probably be restricted to using crossbows or 70lb hunting bows most of the time.