How much pressure will a boy of wieght 50 kg f exert on the ground when (i) he is lying on ground and (ii) he is standing on his feet ? It is given that the area of the body of the boy is `0.5 m^2` and that of foot is `60 cm^2`. Use ` g = 10 m//s^2.`

How much pressure will man of weight 80kg f exert on the ground when (i) he is lying and (ii) he is standing on his feet ? Given that the area of the body of the man is 0.6 m^(2) and that of a foot is 80 cm^(2).

How much pressure will man of weight 60 kg exert on the ground when (a) he is standing on his feet and (b) he is lying on ground. Given that the area of a foot is 100cm^(2) and areaa of the body of a man in contact with ground = 0.6 m^(2) . Use g=10m//s^(2)

Calculate the pressure that a man of weight 70 kgf will exert on ground. (a) When he is standing on feet. (b) When he is lying on the ground. The are of foot is 70cm^(2) and area of his body is 0.5 m^(2) .

Find the pressure exerted by a man weighing 90 kg on the ground. When he is standing on one of his feet having an area of 90 cm^2 .

Find the pressure exerted by a man weighing 90 kg on the ground.When he is lying flat. The area of his body is contact with the ground is 0.9 m^2 .

A box weighing 2 kg exerts a force of 20 N on the ground. The box covers an area of 2 sq. m on the ground. Find the pressure exerted by the box on the ground.