Question

If the area of my head were 15 cm x 15 cm, how
much weight of air would I be carrying on my head? ​

Answer 1

Answer:To calculate the weight of the air, mass of the air should be know.

When we know the mass of the air, we can calculate the pressure exerted by the air on the head, since area of your head is known.

Explanation:

Answer 2

Question:

If the area of my head were 15 cm x 15 cm, how much weight of air would I be carrying on my head?

Solution:

Area of head = $15cm \times 15cm$

$\implies \frac{15}{100m} \times \frac{15}{100m}$

$\implies \frac{225}{{10}^{4}}$

$\implies 225 \times {10}^{-4}$

$\implies 1 atm = {10}^{5} P$

P = Force/ Area

$\implies {10}{5} pa = \frac{F}{225} \times {10}{-4m}{2}$

$\implies F = {10}{5} Pa \times 225 \times {10}{-4m}{2}$

$\implies {10}{5} {\frac{N}{m}}{2} \times 225 \times {10}{-4m}^{2}$

m square will cut will m square

$\implies 225 \times 10N$

$\implies F = 2250 N$