10 A ship is made of 4000 m' steel of density 7900 kgm^3
a. What volume of fresh water
1000 kg m) would the ship need to
displace in order for it to float?

b. Explain how the design of the ship enables
it to displace this much water.​

Explanation:

mass of ship = volume x density

= 4000 x 7900 = 316 x 10⁵ kg

The ship must displace water equal to weight of ship that is 316 x 10⁵ kg .

If volume of displaced water be V .

V x 10³ is mass of displaced water

V x 10³ = 316 x 10⁵

V = 31600 m³.

b ) Now the volume of steel making ship is only 4000 m³ so if it is in the form of a lump , it will displace only water equal to its volume ie 4000 m³ . So in order that it may displace water equal to volume 31600 m³ , it must be given shape so that it is hollow .

reserve is the answer