chapter 05 - turning effect of forces Flashcards
1
Q
define centre of gravity
A
it is an imaginary point where the entire weight of the object seems to act
2
Q
state the principle of moments
A
when an object is in equilibrium, the sum of clockwise moments about a pivot is equal to the sum of anticlockwise moments about the same pivot
3
Q
define a moment
A
it is the product of the force and the perpendicular distance from the line of action of the force to the pivot
4
Q
define stability
A
the measure of the body’s ability to main its original position
5
Q
conditions to make a body more stable
A
lowering centre of gravity
increasing base area of body
6
Q
A
