A 55-kg skier starts from rest at the top of a ski jump, point A in Fig. 6–48, and travels down the ramp. (Assume the ski jump turns upward at point B and gives her a vertical component of velocity (at B) of 3.5 m/s .) If friction and air resistance can be neglected, (a) determine her speed vB when she reaches the horizontal end of the ramp at B. (b) Determine the distance s to where she strikes the ground at C.

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min