a paraTROOPER JUMPS FROM A PLANE.HOW MANEY FEET WILL HE FALL BEFORE HE REACHES TERMINAL VOLICITY.AND WHAT SPEED WILL IT BE IF HE WEIGHS 175 LBS.

Answer 1

Before or after his parachute opens? There are different terminal velocities before and after.

You need a drag coefficient and frontal area for the person jumping These will depend upon his body-mass index and how he orients his body in the flow (belly first or head first). Only an approximate answer can be provided.