1.

Calculate the pressure over the area of edge acube having dimension 30cm,20cm,10cm and mass of 10 kg.(6 marks)

Answer»

f=mg=10×10=100NA=2 (lb+bh+lh) = 2 (0.3×0.2+0.2×0.1+0.3×0.1) =2(0.06+0.02+0.03 = 2×0.11 = 0.22m^2p=f/a = 100/0.22 = 5N approximately



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