13. Fig 3.35 shows a brick of weight 2 kgf and dimensions 20 cm x 10 cm x 5 cm placed in three different positions on the ground. Find the pressure exerted by the brick in each case. 10 cm 5 cm 20 cm 5 cm 10 cm 20 cm 5 Fig. 3.35 Pressure exerted by a brick placed in three different positions​