General expression is;
Pressure = Force/Area
In which,
Pressure = Required pressure + Atmospheric pressure = (1.2*10^5) + (101325) = 221325 Pa = 221325 N/m^2
Area = πD^2/4 = π*0.035^2/4 = 9.621*10^-4 m^2
Therefore,
Force, F = Pressure*Area = 221325*9.621*10^-4 = 212.94 N
The kinetic energy is transferred to thermal energy through friction
So this form of energy is gravitational potential, which is defined as mass*height*gravity so if we use gravity as 10 m/s^2 to keep it simple we can do 150kg*10m*10m/s^2 and we get a total of 15,000 joules
Check the 1st 2nd 3rd and 4th boxes
Her speed was 7.27 meters per second
