Kwame and Priya are standing on a hill that slopes downward towards the east. If Kwame drops a ball, in which direction will it roll? Make your response very short.
The ball will roll downhill towards the east. Since the hill slopes downward in that direction, gravity will pull the ball along the slope's descent. Hence, the force of gravity is not opposed by any other forces, like friction or obstacles, causing the ball to move in the direction of the slope.