Question

Answer the following.

1. Force of 5 Newtons in an area that is 25 cm2. Pressure =? (unit is Pascals
Pa])
2. Force of 3 Newtons in an area that is 9 m2. Pressure= ?
3. Force of 1.5 Newtons in an area that is 3 m2. Pressure=?

Answer 1

To calculate pressure in pascals, divide the force in newtons by the area in square meters. For the given problems, the pressures are 2000 Pa, 0.333 Pa, and 0.5 Pa respectively.

Step-by-step explanation:

The questions provided involve calculating pressure, which is defined as the force applied per unit area. The formula used to calculate pressure (P) is:

P = F / A

Where:

• P is the pressure in pascals (Pa)
• F is the force in newtons (N)
• A is the area in square meters (m²)

For the first problem, we have a force of 5 Newtons and an area of 25 cm². Since 1 m² = 10,000 cm², the area must be converted to square meters before calculating pressure:

Area = 25 cm² × (1 m² / 10,000 cm²) = 0.0025 m²

Now, apply the formula:

Pressure = 5 N / 0.0025 m² = 2000 Pa

For the second and third problems:

2. Pressure = 3 N / 9 m² = 0.333 Pa

3. Pressure = 1.5 N / 3 m² = 0.5 Pa

This is how we calculate pressure in pascals for different forces and areas.