The system is initially moving with the cable taut, the 19-kg block moving down the rough incline with a speed of 0.180 m/s, and the spring stretched 68 mm. By the method of this article, (a) determine the velocity v of the block after it has traveled 184 mm, and (b) calculate the distance d traveled by the block before it comes to rest.

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

answerdmitry mendeleyev made a workable classification of the elements