Calculate Specific Gravity: Weight, Buoyant Force & Density

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To calculate the weight of water displaced by the body, the buoyant force is determined by the difference in weight between air and water, which is 20N. The specific gravity of the body can be calculated using the formula that relates buoyant force to weight in air, leading to a specific gravity of 0.75. To find the density of the body, the mass can be derived from its weight in air, resulting in a density of approximately 800 kg/m³ or 0.8 g/cm³. The forum emphasizes collaborative problem-solving rather than direct answers, encouraging users to share their thought processes. Engaging in this manner helps users develop a deeper understanding of the concepts involved.
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question...

A body weighs 80N in air and 60N in water. a) what is the weight of the water displaced bythe body?
b) The buoyant forces of water on the body
c) The specific gravity if the body>
d) The dnsity of the body in kg/m3 and g/cm3

cant answer this.. please i need help ;) thanks!:confused:
 
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for question c:F(in Newtons)= mass x acceleration (in this case, gravity)

for the first one, it is on land. on land, the acceleration(gravity) is always 9.8m/s^2

so you can find the mass of the object

80= m x 9.8

now that you have the mass of the object, find the gravity for the object in the water

60N= m x g(the variable you are trying to find)
 
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