Question

a cube of wood floating in water support 1 kg mass resting on the center of its top surface. when the mass is removed the cube rise 2.5cm find the length of
cube? ans is 20cm

Answer 1

mass=massofwaterdisplaced=1g/cm^3(2.5*L^2

1000=1*2.5*L^2

L=sqrt400=20cm