[填空题]
If there were no air resistance, how long would iot4dp vcx (q7 f .e8z +jf*u3crm-yfv(t take a free-falling 2u t 7o;-p/z;d xr. )omabdy;mxdfy7g parachutist to fall from a plane at 3200 m to an altitude of 350 m, where she will pull her ripcord? What would her speed be at 350 m? (In droymzatb)xx.2y; mu g/7 f;do ;dp 7-reality, the air resistance will restrict her speed to perhaps 150 km/h .)
s
km/h