Question

The mass of a box is 60kg. The base area of the box is 200 cm'. Find the pressure exerteded
the box on the ground. (Take-9.8 m/s')​

Answer 1

Answer:

Force = mg = 60kg ×9.8m/s

2

= 588N

Area = 180 cm

2

=0.018m

2

Pressure=

Area

Force

=

0.018

588

=32666.7P

a

Answer 2

Question :

The Mass of a Box is 60 kg. The Base Area of the Box is 200 cm².

Find the Pressure exerted by the Box on the Ground.

(Take g = 9.8 ms⁻²)

$\begin{gathered} \end{gathered}$

Solution :

Given,

Mass of the Box, m = 60 kg

Base Area of the Box, A = 200 cm²

$\begin{gathered} \end{gathered}$

$\begin{aligned} \mathtt{Thrust \leftrightarrow Force, F} &= \mathtt{Mass \times g}\\\\&= 60\ kg \times 9.8\ ms^{-2}\\\\&= \bf 588\ N \end{aligned}$

Base Area of the Box = 200 cm² = $\dfrac{200}{10000}\ m^2 = \bf 0.02\ m^2$

$\begin{gathered} \end{gathered}$

By using the Formula

$\boxed{\mathtt{Pressure = \dfrac{Thrust}{Area}}}$ ,

$\mathtt{Pressure} = \dfrac{588\ N}{0.02\ m^2} = \bf 29,400\ Nm^{-2}$

$\begin{gathered} \end{gathered}$

Hence, Pressure exerted by the Box on the Ground = 29,400 Nm⁻²

$\begin{gathered} \end{gathered}$

More Information :

Thrust: Force exerted by an Object perpendicular to the Surface is called Thrust.

$\begin{gathered} \end{gathered}$

Pressure: Pressure is defined as Thrust (or Force per unit Area) on a Surface.

The SI Unit of Pressure is $\bf \dfrac{N}{m^2}\: or\: Nm^{-2}$

In honor of Scientist Blaise Pascal, the SI Unit of Pressure is called Pascal, Denoted by Pa.