Astudent slides down a slide at recess after getting off the slide he goes across to the monkey bars as he touches the middle of the monkey bars he gets a shock how did the electric charge transferred from slide to his body

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

conservation of mass

mass before something happens = mass afterwards