Zarina is standing at the bottom of a hill looking up, and Oluwatobi is standing halfway up the hill facing down towards Zarina. If Oluwatobi drops a ball, what happens to the ball and can Zarina see the ball the entire time it rolls down the hill? Respond very briefly.
When Oluwatobi drops the ball, gravity causes it to roll down the hill. Depending on the steepness and texture of the hill, as well as any obstacles, the ball may either roll straight down or follow a curved path. Assuming no obstacles and a clear path, Zarina would be able to see the ball as it rolls down the hill. Her viewpoint from the bottom looking up allows her to have a clear line of sight to Oluwatobi's position and any object, such as the ball, that moves along the hill between them. However, if there are dips or crests on the hill that are significant enough to obstruct her line of sight, there may be moments when Zarina cannot see the ball.