How much pressure will a man of weight 80 kg f exert on the ground when (i) he is lying and (2) he is standing on his feet. Given area of the body of the man is 0.6 m2 and that of his feet is 80 cm2.
(i) When man is lying P
(ii) When man is standing then A = 2 × 80 cm2
= 160 × 10–4 m2
