GCSE Questions: Moments and Centre of Gravity

Q6. The diagram shows a fork-lift truck lifting a heavy crate.

(a) The crate weighs 11 500 N and is lifted vertically 2.60 m.

Calculate the work done to lift the crate.

[3 marks]

(b) The weight of the crate causes a clockwise moment of 13 800 Nm about the centre of the front wheel of the fork-lift truck.

The weight of the fork-lift truck and driver cause an anticlockwise moment.

What is the minimum size of the anticlockwise moment needed so that the fork-lift truck does not topple over?

[1 mark]


(i) Write down the equation which links distance, force and moment of a force.

[1 mark]

(ii) Calculate the distance 'd' marked on the diagram.

[3 marks]

[8 Marks TOTAL]