Question

A box has a base area of 2.1 m2.
The box is placed on the ground and exerts a force of 6.2 kN.
What pressure is the force applied with?
Give your answer in kN/m2 and rounded to 2 dp.

Answer 1

Given:

• A box has a base area of 2.1 m².

• The box is placed on the ground and exerts a force of 6.2 kN.

To be calculated:

What pressure is the force applied with?

Formula used:

Pressure = Force/Area

Solution:

We have,

A base area of box is 2.1 m² and Force is 6.2 kN.

We know that,

Pressure = Force/Area

Putting the values of force and area on the above formula, we get

Pressure = 6.2 kN/2.1 m²

= 62 kN/21 m²

= 2.95 kN/m² ( approx)

Thus,

Pressure exerted on the ground is 2.95 kN/m² .

Additional information:

Pressure: Pressure is the force acting perpendicularly on a unit area.

➱ S.I unit = N/m² or Pascal ( Pa )

➱ 1 Pa = 1 N/m²

Factors affecting pressure:

• Pressure is directly proportional to the force.

• Pressure is inversely proportional to the area .

Answer 2

Question:

A box has a base area of 2.1 m2.

The box is placed on the ground and exerts a force of 6.2 kN.

What pressure is the force applied with?

Give your answer in kN/m2 and rounded to 2 dp.

Given:

1. A box has a base area of 2.1 m².
2. The box is placed on the ground and exerts a force of 6.2 kN.

To Find:

• What pressure is the force applied with?

Formula Used:

Pressure = Force/Area

Solution:

We have,

A base area of box is 2.1 m² and Force is 6.2 kN.

We know that,

Pressure = Force/Area

Putting the values of force and area on the above formula, we get

Pressure = 6.2 kN/2.1 m²

= 62 kN/21 m²

= 2.95 kN/m² ( approx)

Thus,

Pressure exerted on the ground is 2.95 kN/m² .

Additional information:

Pressure: Pressure is the force acting perpendicularly on a unit area.

➱ S.I unit = N/m² or Pascal ( Pa )

➱ 1 Pa = 1 N/m²

Factors affecting pressure:

Pressure is directly proportional to the force.

Pressure is inversely proportional to the area .