A lead block of length 
, height 
and width 
is placed in the mud at a depth of 
below the surface of a lake, as shown in the figure below. If the density of lead is 
, calculate:
the upthrust on the lead block.
the pressure on the lake floor on which the block stands. (Do not take air pressure into account in the calculation)
Lead block at the bottom of the lake.
and it acts on the body, pointing downwards.
.
