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a. when a body is fully or partially immersed in a fluid it experiences an up thrust equal to weight of fluid displaced 1mk
nb. 3/4x100=75cm^3 1mk
b. (i)Mass of water displaced =75g
p=m/v 1mk
75/100=0.75g/gm^3 1mk
(ii).Volume displaced =m/? 1mk
75/0.90=83.33cm^3 1mk
Volume out =100-83.33
=16.67cm^3 1mk
(iii) if 83.33cm^3 mass is 75 g 1mk
then 16.67 cm^3 mass will be 15g 1mk
=0.015N 1mk
c. T+W=U 1mk
T+(3+0.18x1.2x10)=1.125x1.2x10 1mk
T=9.84N 1mk
joseph rimiru answered the question on January 1, 2018 at 19:35
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