formulas Flashcards
1
Q
what is the mechanical advantage pyramid?
A
load on top mechanical advantage on the left, effort on the right
2
Q
MA=
A
MA= load force divided by effort force
3
Q
how do you find the percent efficiency?
A
mechanical advantage divided by velocity ratio times 100
4
Q
mechanical advantage with levers?
A
ma= length of effort arm divided by length of loaf arm
5
Q
velocity ratio?
A
distance effort force moves divided by distance load force moves
6
Q
gear ratio?
A
effort teeth : load teeth
7
Q
ma with friction?
A
(add force to overcome friction to effort force)
load force divided by effort force
8
Q
pressure?
A
p= force divided by area
