Question

Which will exert more pressure 100kg mass on 10 sq m or 50 kg on 4sq m. Give reason?

Answer 1

First We Calculate the Pressure in both  situations.

We know that pressure  = Force / Area.

Here Force = Mass × acceleration ( Here Gravitational force ).

So Acceleration due to gravity = 9.8N

So force = 100kg × 9.8N = 980N.

So Pressure = 980N/10SQ.M. = 98N/M²

So In First Situation Pressure = 98N/M²

In Second Situation 
 
            Pressure = Force / area = mg÷area = 50×9.8÷4 = 122.5N/M².

So In Second Situation Pressure = 122.5N/M².

So 50KG on 4 SQM. Exerts more pressure than 100 KG on 10SQM.