PLEASE HELP A forklift pushes a 184kg box into a 256kg box, which slides into a 113kg box. If all 3 boxes slide across the floor at 3.8m/s, how much force does the 184kg box exert on
the 256kg box? The coefficient of friction between each box and the floor are listed
in the table below:

force tends to be low and long diustance masses are high

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