Amack truck and a volkswagen traveling at the same speed have a head-on collision. the vehicle to undergo the greatest change in velocity will be the
a) volkswagen. b) mack truck. c) both the same.

The Volkswagen

Explanation:

The Volkswagen will have a greater change in velocity after the collision due to the nature of the vehicle. The Volkswagen is lighter compare to the heavy nature of the truck. The lighter nature of Volkswagen is due to streamlining.

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