Welcome to the first series of calculations you won't need in your day-to-day life.
NOTE: Contains physics. For curious !
U went to lunapark and u wanted to ride the ballerina. The ballerina does all eccentric movements with hydraulic power. I wanted to briefly give information about these calculations.
Simply put, the load carrying capacity of the ballerina = 170 tons-F (it's just an example.) ;
F = P x A ---------------> 170 x 1000 = 350 x A --------> A = 485,72 cm*2 ' dir. (Cylinder)
A = (π x D x D) /4 ----> 485,72 = (π x D x D) /4 -----> D = 24,87 cm (Cylinder Diameter)
U = h / t ----------------> U = (34/20) = 1,7 cm/sn
Q = (3 x A x U) /50 --> Q = (3 x 485,72 x 1,7) /50 --> Q = 49,55 lt/dk (Oil Flow Rate)
N = (P x Q) /510 -----> N = (350 x 49,55) /510 ------> N = 34 kW (Motor Power)
