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    A block of stone of mass 132 kg hangs from a cord and is completely immersed in water. Calculate the tension in the cord. Assume density of stone = 3.0 x10^3 kg m^-3
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    Just quoting in Amusing Elk so she can move the thread if needed :wizard:
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    W=mg ? To give tension
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    There's gonna be a force of upthrust due to the body being immersed in water. Use volume=mass/density to find this force of upthrust (its the weight of the water displaced) and hence you can work out the tension. Draw a free body force diagram if you need to visualise the forces.
 
 
 
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