8.9 x 10-3m3
6.4 x 10-3m3
3.2 x 10-3m3
3.0 x 10-3m3
Correct answer is B
Upthrust = 96 - 32 = 64N
mass(m) = 6410=6.4kg
volume = massDensity=6.41000
= 6.4 x 10-3m3
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