Constant force is 5 units.Let the distance travelled = x units and work done = y units.Work done = Force x Distance⇒ y = 5 x x ⇒ y = 5xFor drawing the graph, we have y = 5xWhen x = 0, then y = 5(0) = 0x = 1, then y = 5(1) = 5x = -1, then y = 5(-1) = -5∴ We get the following table :Ploffing the ordered pairs (0, 0), (1, 5) and (-1, -5) on the graph paper and joining the points, we get a straight line AB as shown.From the graph, we get(i) Distance travelled =2 units i.e., x = 2∴ If x = 2, then y = 5(2) = 10⇒ Work done = 10 units.(ii) Distance travelled = 0 unit i.e., x = 0∴ If x = 0 ⇒ y = 5(0) – 0⇒ Work done = 0 unit.