Question

A solid weighs 50 gf (where gf is gram force) in air and 45 gf when completely immersed in water. calculate
a) upthrust
b) volme of the solid
c) relative density of the liquid

Answer 1

a) 35
b) 75
c) 5

Hope this helps

Answer 2

a). Upthrust = 5gf or 0.05 N

b). The volume of the solid = 5$cm^{3}$

c). The Relative density of the liquid = 10

Explanation:

a). upthrust = Weight in air - weight in water

  = 50 - 45

  = 5gf

b). Volume of the solid = 5 * 9.8/1000

v * 1000 * 9.8 = 5 * 9.8/1000

v = $\frac{5}{10^{3} * 10^{3} }$

v = 5 * $10^{-6}$

= 5cm^{3}

c). The relative density of the liquid = $\frac{w_{1} }{w_{1} - w_{2} }$

= 50/50-45

= 50/5

= 10

Learn more: Volume of the solid

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