You are a passenger on a jetliner that is flying at a constant velocity. you get up from your seat and walk toward the front of the plane. because of this action, your forward momentum increases. does the forward momentum of the plane itself decrease, remain the same, or increase?

Decreases

Explanation:

Assuming the plane and the passenger are in the same system, the total momentum of the system will remain constant. (i.e. net momentum)

This means that to cancel out the effect of the increase in forward momentum of the passenger, the plane will increase its backward momentum (i.e. reduce its forward momentum).

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

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hope this !