When a car’s velocity is positive and its acceleration is negative, what is happening to the car’s motion?

When the velocity of a car is positive and its acceleration is negative that means the car's speed is decreasing or we can say that car is decelerating.

for example - when we apply brakes, the acceleration is negative while velocity is still positive.

Acceleration is the rate of change of velocity.

The car's rate of change of position is decreasing. The car is moving but its rate of position increase is coming down.

The car will eventually come to a brief stop and begin traveling backward.

the assestment will probley apele with cause and effect

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