6.3 The principle of moments

Question 1

What is the moment of a force about any point defined as?

Answer 1

The force x the perpendicular distance from the line of action of the force to the point.

Question 2

Define moments

Answer 2

force x perpendicular distance from the line of action of the force to the point

Question 3

What is the principle of moments?

Answer 3

The sum of the clockwise moments = the sum of the anticlockwise moments

Question 4

Define centre of mass

Answer 4

the centre of mass of a body is the point through which a single force on the body has no turning effect