Answer
The buoyant force provided by warmer water is less than the buoyant force provided by the cooler water.
Work Step by Step
According to$Archimede's$ $principle$ we have that buoyant force which is equal to the weight of the water displaced .
Weight is defined as $W$ $=$ $mg$ $=$ $dV$
We see that weight is directly proportional to the density of water . Since cooler water has higher density then warmer water . We conclude that buoyant force provided by warmer water is less than the buoyant force provided by cooler water.
