A boat floating in fresh water displaces 16,000 N of water.How many newtons of salt water would it displace if it floats in salt water of specific gravity 1.10?
A)12,800 N
B)14,400 N
C)16,000 N
D)17,600 N
E)19,200 N

Question

Quizplus · Accepted Answer

The boat will displace the same amount of water in terms of weight regardless of whether it is in fresh water or salt water. The buoyant force (which equals the weight of the displaced fluid) must balance the weight of the boat for it to float. Since the boat displaces 16,000 N of fresh water, it will also displace 16,000 N of salt water to float. The specific gravity affects the volume of water displaced, not the weight.

A Boat Floating in Fresh Water Displaces 16,000 N of Water.How