A. i. State the principle of moment. ii. A 650 N boy and a 490 N girl sat on a 150 N uniform pole that is 1.7 m long. If the pole is supported at both ends by their mother and father respectively, wha

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8. a. i. State the principle of moment.
The principle of moment states that for a body to be in rotational equilibrium, the sum of the clockwise moments about any point must be equal to the sum of the anticlockwise moments about the same point.

**8. a. ii. A 650 N boy and a 490 N girl sat on a 150 N uniform pole that is 1.7 m long. If the pole is supported at both ends by their mother and father respectively, what are the reactions of the mother and father at the supports when the boy sits 0.75m from one end and the girl is 0.5m from the other?