A) From, the principle of moments the clockwise moment is equal to the anticlockwise moments. weight of the block × distance from the pivot = Force × distance to the pivot = 1000× 1 = 2.5 × F = 2.5 F = 1000 F = 400 N
b) IMA is an ideal machine's mechanical advantage. They are calculated by dividing the distance over which you apply effort by the distance moved by the load. In this case; IMA = 2.5/1 = 2.5 The IMA is therefore 2.5
