ou are steadily holding a regular sphere with a large internal cavity, which when left alone, floats

on the surface of a swimming pool. Next, you decide to push it downwards so it enters the water, and

continue to push downwards at constant speed toward the bottom of the pool. The magnitude of your

applied force on the sphere must initially $($a$)$ increase $($b$)$ decrease $($c$)$ be constant, until the sphere is

entirely submerged in the pool