Question

Why does a ship made up of iron floats in water while a needle sink?

Answer 1

hi friend your answer is here.

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 a ship made up of iron floats in water while a needle sink because it has a density more than that of water, whereas aship made of steel or any other materialfloats on water because the inner part ofship is hollow and contains air in it, which makes it possible to float.

Answer 2

density of nail (as of iron) is much larger than the water. So it sinks easily. The weight of the water displaced by the ship is equal to its weight, so it floats. Whereas the weight of the water displaced by the iron nail is less than its weight so the iron nail sinks.

hope it helps u