Question

As an object sinks in a fluid, the buoyant force ____.

a. increases
c. remains the same
b. decrease
d. depends on the shape

Answer 1

buoyant force is equal to weight of liquid displaced which depends on volume of liquid displaced which in turn is equal to volume of sinking object. Since volume of sinking object as it sinks deeper and deeper ,remains unchanged and buoyant force on it also remains unchanged.