In a classroom demonstration, a 73.5kg physics professor lieson a "bed of nails". The bed consists of a large number of evenlyspaced, relatively sharp nailsmounted in a board so that thepoints extend vertically outward from the board. While professor islying down, approximately 1900 nails make contact with hisbody.a. What is the average force exerted by each nail on theprofessor's body?b. If the area of constant at the head of each nail is1.26*10^-6m^2, what is the average pressure at each contact?