Mathematics for IGCSE & O level - Rates (Section 1 - No. 46)
A heavy box is placed on a table. The base of the box is a rectangle measuring 50cm by 40cm. The box exerts a force of 120N on the table. Calculate the pressure exerted on the table, in N/m².
500 N/m²
600 N/m²
700 N/m²
800 N/m²
Giải thích
Area = 0.5 m * 0.4 m = 0.2 m². Pressure = 120 N / 0.2 m² = 600 N/m².