Question

A hollow steel boy in the form of a sphere of redis 0.5 m is fixed by a wire to the base of a river if the mass of the boy is 20 kg, calculate the tension in the cable. Take density of water equals 1000 kg m ^ -3.

Answer 1

Oh, that poor boy is about to drown, unless he can hold on to that buoy,
which is a floating device fixed by a wire to the base of a river....