(a) The other forces are the weight (80N acting downwards at M) and the normal reaction from the ground at A (acting upwards). (b)(i) Moment of 20N force about A = 20N × 1.2m = 24Nm. (ii) Taking moments about A: Clockwise moment (weight) = 80N × AM = 24Nm, so AM = 0.3m.

Break down complex topics into smaller, manageable chunks for easier recall.

Zambia

• Joseph Soko – 108 pts

• Distance of A Straight Line
• Mid-point of A Line
• Equation of a Straight Line
• Parallel and Perpendicular Lines
• COMMUNICATION SYSTEMS