chap 5- turning effects of forces

Question 1

What is a moment

Answer 1

the moment of a force M, or torque, about a pivot is the product of the force F and the perpendicular distance d from the pivot to the line of action of force.

Question 2

Si unit of moment

Answer 2

newton metre (Nm)

Question 3

what is the principle of moments

Answer 3

the principle of moments states that when a body is in equilibrium, the sum of clockwise moments about a pivot is equal to the sum of anticlockwise moments about the same pivot