[填空题]
Jane, looking for Tarzan, is running 8hzs1m(bhmc)dd/ v6fh (8osbat top speed (5.3m/s) and grabs 2.sgb;tr4xvgs (p,u p r7r g9qa vine hanging vp2q s ;4 upxbrr vg9,ts7gr(g.ertically from a tall tree in the jungle. How high can she swing upward? m
Does the length of the vine affect your answer?