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thefrogman
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An object weighs 150 Ibs and displaces
3 cubic feet of water.
how much lead weight do you need
to make it 60 Ibs negatively buoyant in
sea water? (Round to closest kg/lb.)
64x3=192
150-192= -42
150+42+60=252
An object weighs 500Ibs and displaces
5.5 cubic feet of water. How
much additional sea water do you need to
displace to give the object 90 Ibs posi
tive buoyancy? (Round to closest litre/cf.)
64x5.5=352
500-352=148
148/64=2.31
3 cubic feet of water.
how much lead weight do you need
to make it 60 Ibs negatively buoyant in
sea water? (Round to closest kg/lb.)
64x3=192
150-192= -42
150+42+60=252
An object weighs 500Ibs and displaces
5.5 cubic feet of water. How
much additional sea water do you need to
displace to give the object 90 Ibs posi
tive buoyancy? (Round to closest litre/cf.)
64x5.5=352
500-352=148
148/64=2.31
