Question

Fig. 3.1 shows a ladder AB. End A of the ladder rests against a vertical wall. End B rests on rough ground.

Answer 1

Answer:

240n is the write analysis

Answer 2

Answer:

1. (240 × 1.2 =) 290 (Nm) B1

2. F × 3.2

Explanation:

1. Moment = Force * Distance = 240 * 1.2 = 288Nm

2. F = Force

   3.2 = Distance

So, 3.2 x F   Nm

This question is from 2015 IGCSE 0625 Feb/March 32.

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