Question

7. The pressure exerted on a surface of 10 m2 is 25 Pa. Find the applied force on the surface.
8. A force of 700 N applied on a surface result in the pressure of 20 Pa. Find the area of the surface.
9. A force of 12 N is acting on a surface of area 4 m². If the force is doubled and the area of thesurface is made half of the initial area, what would be the difference in pressure?
D. Imagine you are provided with a plastic container, water and a needle. With the given material,how can you prove that liquid pressure is same at equal depth?​

Answer 1

7)SOLUTION-

GIVEN- PRESSURE(P) = 25 Pa

AREA (A) = 10 m ^2

Force = pressure×area

=25×10

=250N

8) force = 700 N

pressure = 20 Pa

Area = 700/ 20

= 35 m2