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

Question

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

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Amity 4 years 2021-08-08T17:11:26+00:00 1 Answers 58 views 0

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    2021-08-08T17:13:11+00:00

    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?

    Answer:

    1471.5\ N/m^{2}

    Explanation:

    Pressure is force acting per unit area hence expressed as P=\frac {F}{A} 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 P=\frac {mg}{lw} and substituting 30 kg for m, 0.4m for w, 0.5 m for l and 9.81 for g we obtain pressure as

    P=\frac {30\times 9.81}{0.5\times 0.4}=1471.5\ N/m^{2}

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