Law of Moments Flashcards
1
Q
equilibrium meaning
A
balance
2
Q
when a body is in equilibrium, what happens
A
the sum of the anticlockwise moments about any point equals the sum of the clockwise moments about the same point (DUDE. HOW. THATS COMMON KNOWLEDGE)
3
Q
whats is the first condition for equilibrium
A
the sum of the forces in one direction equals the sum of the forces in the opposite direction (eg total upward forces= total downward forces)
4
Q
the second
A
the law of moments must apply
Total clockwise moments= total anticlockwise moments about the same point
5
Q
eg 1 (read it)
A
total clockwise moment= total anticlockwise moment
W x 1.75= 500 x 2
W x 1.75= 1000
(therefore symbol) W= 1000/1.75
=571N
