Homework Answers
in case of second this weigh more because there will be zero buoyancy force on object due to air/liquid
but in first there will be non zero buoyancy force due to air which reduces the weight
its like you dipped the object in a liquid which is air in this case so a upward buoyancy force will act on it
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31 AL Figure P9.28 it 29. A sample of an unknown material appears to weigh 300....
31
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4. When a solid object is suspended from a spring scale in air the scale reads 21.7N. The object is then completely submerged in water and the spring scale reads 16.6N. Draw a free-body diagram for the object suspended from the scale in air. You may ignore the very small buoyant force from the air. Using a Newton's 2 nd law equation for the vertical direction on your FBD determine the mass of the object. Draw a free-body diagram for...
31
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