1.

Minnimum 1 kpa pressure is required to carry out an activity .A machine which can apply 10^5 N force is use for this purpose .What should be the maxium area on which this force is required to be applied so that the activity can be carried out ?

Answer»

SOLUTION :1 kpa = 1000 pa =`1000 N//m^2`
Hence , aminimum of 1000 N force is required
Pressure `="Force"/"Area" rArr 1000 = 10^5/"Area"`
`therefore " Area"= 10^2=100 m^2`
The maximum area on which the force is required to be appied is `100 m^2`
Hence ,Pressure is inversely PROPORTIONAL to area when the force is kept CONSTANT .


Discussion

No Comment Found