Up thrust = tension, T + weight
= 2.0 + 0.5 = 2.5 N - weight of water displaced
Mass of water = $\frac{2.5}{10}$ = 0.25 kg
Volume of water displaced = volume of wood
= $\frac{mass}{density}$ = $\frac{0.25}{1000}$ = 0.00025 m3
Density of wood = $\frac{0.2}{0.00025}$
= 800kg/m3
johnmulu answered the question on February 18, 2017 at 09:49
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