A girl weighs 
. Give the Answers to the following cases:
What is the pressure under her feet when she is standing still? The area of one foot is 
.
What is the pressure under the foot when she is standing on one leg?
What is the floor pressure when standing on a single heel of a shoe with area 
?
What is the pressure under the skate when skating on one leg if the contact surface of one skate is 
?
What is the pressure under both skis when skiing if the contact area of one ski is 
?
.
.
.
.
.
