Question

calculate the pressure of a force 40N acting on a box with length 5cm and breadth 4cm​

Answer 1

Given:-

• Force acting on box (F) = 40N.

• Length of box (l) = 5cm

• breadth of box (b) = 4cm.

To Find:-

• Pressure (P).

Solution:-

Firstly we calculate the area of box .As we know that

Area of box = length×breadth

Put the value which is given above

⟹ Area of box = 5×4

⟹ Area of box = 20cm²

1m² = 10000cm²

⟹Area of box = 20/10000= 2/1000m²

Now, we calculate the pressure

⟹ Pressure = Force/Area

Put the value which is given above

⟹ P =F/A

⟹P = 40×1000/2

⟹P = 40000/2

⟹P = 20000 Pa.

∴ The pressure acting on the box is 20000 Pascal.

Additional Information!!!

✧ Product of mass and acceleration is called force.

⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀OR

A push or pull of an object is called force.

✧ SI unit of Force is Newton.

✧ It is denoted by N.

✧ Force is vector Quantity i.e., both Magnitude and direction.

✧ Mathematical term

⟹ Force = Mass×Acceleration