Question

A model weighing 45 kg is standing on a pencil heel each having an area of cross-section of 2 cm square. Calculate the pressure exerted on the floor.(Acceleration due to gravity-10m/s²)​

Answer 1

Answer:

5.625 * $10^{6}$ Pa

Explanation:

 Given: Mass = 45kg                             g = 10m/

              Each heel area = 2       Total area of support = No. of heels * 2

                                                    =>  4 * 2     =     8

W = m * g        => 45 * 10                            => 450N

                           in C.G.S unit = 1N =  dyne

                                 So, 450N = 450 * $10^{5}$  dyne

 P = Ft / A                       => $\frac{450 * 10^{5} }{8cm^{2} }$                     =>56.25 * $10^{5}$

                    => 5.625 *  $10^{6}$Pa