Question

Numericals

1. A cubical box has sides measuring 20cm each. It exerts a force of 80N on the table where it is kept Calculated the pressure by the box

Answer 1

The force exerted by the box = 80 N
So,
. The thrust will be = 80 N

Also,

The cubical box has side of 20 cm
And,
The area will be side²
So,
Area = (20)² = 400 cm²

Now,
The pressure = thrust/area
So,

Pressure = 80/400 = 1/5 = 0.2 pascals

Hence
The pressure exerted is 0.2 Pa

Answer 2

Answer: 2000 pa

Explanation:

We know that : P = FORCE / AREA ( M^2)

FORCE = 80 N

AREA = 20^2/100*100 ( FOR M^2)

AREA = 0.04 M^2

P = 80/0.04

ON CALCULATING

WE GET

PRESSURE = 2000 PA