[单选题]
98.03: An object in equilibrium hmo. ,uao3 4y)0qci0 igb48tromh ;f awas three fsy7rm;9j3dk jg m4 f-bubg3k7l5g)kb orces, F1 of 30 N, F2 of 50 N, and F3 of 70 N, acting on it. The magnitude of the resultantbjg35rlkbd y-g 7mum4j7g3b f ks k);9 ofF1 and F2 is
