Question

The mass of a box is 300 kg and its base area is 15msquare.calculate the pressure exerted bt the box on the ground (ground=9.8m/s square)

Answer 1

Given :

• Mass, m = 300 kg

• Area, a = 15 m²

• Acceleration due to gravity, a = 9.8 m/s²

To Find :

• The pressure exerted by the box on the ground

Solution :

We know that,

★ Pressure = Force/Area

For calculation of Pressure we will have to find the force acquired first

From Newton's 2nd law of motion :

★ Force = Mass × Acceleration

→ F = 300 × 9.8

→ F = 2940 Newtons

Put the value of Force in the formula of Pressure :

→ Pressure = $\sf\dfrac{2940}{15}$

→ Pressure = 196 Pascals

$\therefore$ The pressure exerted by the box on the ground is 196 Pascals.

Answer 2

Answer:

★ Force = Mass × Acceleration

→ F = 300 × 9.8

→ F = 2940 Newtons

Put the value of Force in the formula of Pressure :

→ Pressure =  $\frac{2940}{15}$

→ Pressure = 196 Pascals

Explanation: