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Question
The dimensions of a wooden block are 2m x 0.25 m x 0.10 m. If the relative density of wood is 0.6, calculate the mass of block in kilograms.
The dimensions of a wooden block are 2m x 0.25 m x 0.10 m. If the relative density of wood is 0.6, calculate the mass of block in kilograms.
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Solution
The correct option is C 30 kg
Volume of block = 2 x 0.25 x 0.10 = 0.05 m3
Relative density = 0.6
Density of wood = Relative density x density of water
0.6 x 1000 kg m-3 = 600 kg m-3
Maas of the block = volume x density
=0.05 x 600 kg m-3
= 30 kg
30 kg
Volume of block = 2 x 0.25 x 0.10 = 0.05 m3
Relative density = 0.6
Density of wood = Relative density x density of water
0.6 x 1000 kg m-3 = 600 kg m-3
Maas of the block = volume x density
=0.05 x 600 kg m-3
= 30 kg
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