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When a force of 5 N acts on a surface, i...

When a force of 5 N acts on a surface, it produces a pressure of 500 Pa. The area of surface then must be :

A

10 `cm^(2)`

B

50 `cm^(2)`

C

100 `cm^(2)`

D

0.01 `cm^(2)`

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The correct Answer is:
To solve the problem, we need to find the area of the surface when a force of 5 N produces a pressure of 500 Pa. We can use the formula for pressure, which is defined as: \[ P = \frac{F}{A} \] where: - \( P \) is the pressure (in Pascals), - \( F \) is the force (in Newtons), - \( A \) is the area (in square meters). ### Step-by-step solution: 1. **Identify the given values**: - Force \( F = 5 \, \text{N} \) - Pressure \( P = 500 \, \text{Pa} \) 2. **Rearrange the formula to find the area**: - From the formula \( P = \frac{F}{A} \), we can rearrange it to solve for \( A \): \[ A = \frac{F}{P} \] 3. **Substitute the known values into the formula**: \[ A = \frac{5 \, \text{N}}{500 \, \text{Pa}} \] 4. **Calculate the area**: \[ A = \frac{5}{500} = 0.01 \, \text{m}^2 \] 5. **Convert the area from square meters to square centimeters**: - We know that \( 1 \, \text{m} = 100 \, \text{cm} \), therefore: \[ 1 \, \text{m}^2 = (100 \, \text{cm})^2 = 10000 \, \text{cm}^2 \] - Thus, to convert \( 0.01 \, \text{m}^2 \) to square centimeters: \[ A = 0.01 \, \text{m}^2 \times 10000 \, \text{cm}^2/\text{m}^2 = 100 \, \text{cm}^2 \] 6. **Conclusion**: - The area of the surface is \( 100 \, \text{cm}^2 \). ### Final Answer: The area of the surface is **100 cm²**.
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