A copper block of mass 0.5kg is hung from the thread and suspended in water. if the density of copper = 9*10^3kg/m^3 density of water =1*10^3kg/m^3. calculate the tension in the thread.

Answer 1

1/9 of the copper's mass is "supported" by the water

tension = 8/9 * g * 0.5 kg ... Newtons