A student designs a toy car by adding rubber wheels to a box. Attached to the top of the box is a thick paper rectangle. When the paper is aligned with the box (Figure 1), the car covers a long distance when pushed. When the paper is perpendicular to the box (Figure 2), the car covers less distance when given the same push. Why does the toy car cover less distance when the paper is perpendicular to the box?

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