Stability/Moments/Hydraulics Flashcards
why are liquids used in hydraulics
they are incompressible to transmit pressure equally
2 ways of making a high chair more stable
increase distance between legs to widen baseline
decrease height
a pendulum swings 5 times in 10 seconds. what is the time period and what is the frequency
time period=2 seconds
frequency= 0.5Hz
why does a force multiplier system like hydraulic braking increase the force input
the area of the slave piston is larger than the master piston
if a pendulum has a frequency of 5Hz what is happening
it completes 5 cycles ( to a point and back again) per second
why does an object topple
the line of action falls out of the baseline which causes a resultant moments to act
describe the resultant moment acting on a stable object
0 as clockwise moment=anti-clockwise moment
