0.5 kg counter-mass pan R After the counter-mass was added the beam turned. a) State the direction the beam turned after the counter-mass was added. b) Calculate the moment of force, about the pivot, that causes the beam to turn. Show your working and state the unit. c) A customer selects tomatoes and adds them to pan R. To balance the beam, the costumer moves pan R so that it is suspended 16 cm from the pivot. Calculate the mass of the tomatoes. a) State what is meant by the term moment of a force about a point. b) The figure below shows a gate of a farm. Source: NSSCO Physical Science Paper 2 20​