Una caja de 30 kg esta apoyada sobre una de sus caras que tiene 40 cm de ancho y 50 cm de lardo que presion ejerce la caja sobre el suelo

Translation

A 30 kg box is supported on one of its faces that is 40 cm wide and 50 cm long, what pressure does the box exert on the ground?

Explanation:

Pressure is force acting per unit area hence expressed as where F is the force and A is area. Force is a product of mass and acceleration due to gravity while area is given as the product of length and width. These two are expressed as Fis mg and A=lw hence substituting them into the initial equation we obtain that and substituting 30 kg for m, 0.4m for w, 0.5 m for l and 9.81 for g we obtain pressure as

thermal energy is the answer