Question

A log of wood of mass 120 Kg floats in water. The weight that can be put on the raft to make it just sink, should be (density of wood = 600 Kg//m)

Answer 1

Answer:

et volume of wood =v

Weight =∫ wood vg

120g=600vg

v=

5

1

​

m

3

Let mass added be 'm'

Total weight=Bowyancy

∫ wood vg+mg=∫ want Vg

600vg+mg=1000vg

mg=400vg

m=400×

5

1

​

m=80kg