05 turning effect of forces Flashcards
1
Q
Definition
Moment/ Torque
A
The product of the force and perpendicular distance from the line of action to the pivot.
Unit: Newton metre, Nm
2
Q
Formula
Moment/ Torque
A
Moment = Fd
F = force
d = perpendicular distance from line of action to pivot, m
3
Q
Definition
Principal of Moment
A
When an object is in equilibrium, the sum of clockwise moment about a pivot is equal to the anticlockwise moment about the same pivot.
4
Q
Definition
Centre Of Gravity
A
The point through which the entire weight of the object appears to act.
5
Q
Definition
Stability
A
A measure of a body’s ability to maintain its original position.
6
Q
Conditions
Stability
A
- Centre of gravity
- Base area
