Answer:
F=49.48 N
Step-by-step explanation:
Given that
Diameter , d= 30 mm
Holding pressure = 70 % P
P=Atmospherics pressure
We know that
P= 1 atm = 10⁵ N/m²
The force per unit area is known as pressure.



Therefore the force will be 49.48 N.
F=49.48 N