A brick is 32 cm long,10 cm wide and 10 cm thick. If it weighs 16 Newton and is lying on the ground. Find pressure exerted by brick on the ground.
An elephant weighing 40,000 N stands on one foot of area 1000 cm2 whereas a girl weighing 400 N is standing on one 'stiletto' heel of area 1 cm2.
(a) Which of the two, elephant or girl, exerts a larger force on the ground and by how much ? (b) What pressure is exerted on the ground by the elephant standing on one foot ? (c) What pressure is exerted on the ground by the girl standing on one heel ? (d) Which of the two exerts larger pressure on the ground : elephant or girl ? (e) What is the ratio of pressure exerted by the girl to the pressure exerted by the elephant ?