A block of Styrofoam floats on water while a same size block of lead lies submerged in the water. The buoyant force is greatest on the
A)lead.
B)Styrofoam.
C)same for both

Question

Quizplus · Accepted Answer

The buoyant force is equal to the weight of the fluid displaced. Since the lead is fully submerged, it displaces more water than the floating Styrofoam, resulting in a greater buoyant force on the lead.

A Block of Styrofoam Floats on Water While a Same