Differentiate between:
Transverse wave and Longitudin
Crest and Trough​

Crest is the highest point that a wave reaches and… Trough the lowest point that a wave reachesTransverse waves are waves whose particles vibrate at right angles to the direction of wave travel e.g water wave. ,longitudinal I think it's not "longitudin" are waves whose particles vibrate in a direction parallel to the direction of wave travel e.g sound wave

the maxium height is 34m/s

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