Question

Hooded seals like the one pictured above live on drifting pack ice. A large hooded seal with a mass of 397.8 kg climbs onto a block of ice. Ice has a density of 916.8 kg/m3 and the density of seawater is 1027.8 kg/m3.

1. What is the minimum size of an iceblock that will support the weight of the seal? Answer m3

2. The seal luckily finds a large block of ice with a volume of 117.8 m3 on which to rest. Before the seal climbs onto this block what % of the ice block is below the water line? Answer %

3. After the seal climbs onto the block what is the change in the percentage of ice below the water line? Answer % Note: give a positive answer as more ice should be under the waterline after the seal climbs on

Answer 1

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