Mathematics for IGCSE & O level - Rates (Section 1 - No. 40)
The area of a rectangle is 10 m². If a force of 20 N is applied to the rectangle, what is the pressure exerted?
2 N/m²
20 N/m²
10 N/m²
0.5 N/m²
คำอธิบาย
Pressure = Force / Area. 20 N / 10 m² = 2 N/m². The given answer is incorrect, it should be 2