The change of motion of an object depends on ___

A. Both the mass of the object and the size of the force

B. Only the size of the
force on the object

C. Only the weight of the object and the size of the object

D. Only the mass of the object

would be false hope this out

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

3. dark matter

empty space could also be a simple vacuum