Question

A rectangular table of length 1m and width 0.5 m has 5kg of books on it. calculate the force, and the pressure acting on the table. Take g = 9.81 m/s^2.​

Answer 1

Required Answer :

• Force = 49.05 N
• The pressure acting on the table = 98.1 P

Given :

• Length of a rectangular table = 1 m
• Breadth of a rectangular table = 0.5 m
• Mass of books which are kept on the table = 5 kg

To find :

• Force
• Pressure acting on the table

Solution :

Formula to calculate the force :

• Force = m × g

where,

• m denotes the mass
• g denotes the acceleration due to gravity

we have,

• m = 5 kg
• g = 9.81 m/s²

Substituting the given values :

⇒ Force = 5 × 9.81

⇒ Force = 49.05

• Force = 49.05 N

Formula to calculate the pressure acting on the table :

• Pressure = F ÷ A

where,

• F denotes the force
• A denotes the area

we have,

• F = 49.05 N
• A = ?

We don't have the value of area. So, firstly we will calculate it.

Formula to calculate the area :

• Area = l × b

where,

• l denotes the length
• b denotes the breadth

we have,

• l = 1 m
• b = 0.5 m

Substituting the given values :

⇒ Area = 1 × 0.5

⇒ Area = 0.5

• Area = 0.5 m²

Now, we will calculate the pressure acting on the table :

⇒ Pressure = 49.05/0.5

⇒ Pressure = 98.1

Therefore, the pressure acting on the table = 98.1 P

Answer 2

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