Three identical blocks, each with a weight of mg = 15.0 N, are placed so that th

Question

Three identical blocks, each with a weight of mg = 15.0 N, are placed so that there is one block in each of three beakers of fluid. In each case, the block floats in the fluid. In case 1, the block is 30% submerged; in case 2, the block is 90% submerged; and in case 3, the block is 50% submerged. If you need it, use g = 10 m/s2.

(a) Determine the magnitude of the buoyant force applied to the block in case 1.

___ N

(b) Determine the magnitude of the buoyant force applied to the block in case 2.

___ N

(c) Determine the magnitude of the buoyant force applied to the block in case 3.

___ N

(d) Briefly justify your answers to part (a) - (c) above.

Explanation / Answer

(d) in each case, block floats so it is in equilibrium.

Fnet = Fb - m g = 0

Fb = m g = 15

mg is same for all three cases.

hence Fb will be same for all three.

(A) 15 N

(B) 15 N

(C) 15 N

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