Physics
A block of wood is floating on water with it's dimensions 50 cm x 50 cm x 50 cm inside water. Calculate the buoyant force acting on the block. Take g = 9.8 N kg-1.
Answer
Given,
g = 9.8 N kg-1
density of water = 1000 kg m3
dimensions of wooden block = 50 cm x 50 cm x 50 cm
= 0.5 m x 0.5 m x 0.5 m [converting to metres]
Volume of wooden block = 0.5 m x 0.5 m x 0.5 m = 0.125 m3
Buoyant force = volume of block x density of water x g
= 0.125 x 1000 x 9.8
= 1225 N
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