A family goes on a walk beside a large river. What would most likely happen to the river if oceans did not exist? Please help me:( The question is science but it did not have science

Ben(55 kg) is standing on very slippery ice when junior(25kg) bumps into him. junior was moving at a speed of 8m/s before the collision and ben and junior embrace after the collision. find the speed of ben and junior as they move across the ice after the collision .

=force × distance a. work b. velocity c. pressure d. momentum

Suppose you plot the distance traveled by an object at various times and you discover that the graph is not a straight line. what does this indicate about the object's acceleration?