Tomorrow When The War Began Worksheet The Scenario Tomorrow, When the War Began is a 2010 Australian movie based on the first novel in the epic series by Australian author John Marsden. A fictional “foreign power” invades the country and a band of teenagers have to deal with the situation, eventually learning how to fight back. The band of teenagers move between houses on the outskirts of their rural town. The invading forces would be regularly checking the houses for survivors and so the teenagers would need to move regularly. Invading the Town in a Garbage Truck Halfway through the movie the teenagers take command of a large garbage truck and are pursued by machine‐gun‐armed buggies. The heavy metal garbage truck is reasonably toughened against gunfire but the bullets still take a toll on the vehicle, slowing it down gradually by taking out tyres and doing other damage. Question 1 (1 mark) If the teenagers stay at a house, the chances of them being discovered on any one night is 7%. They can’t accept a higher risk than 40% of being found at that house. How many nights they can stay at the house before switching to a different property? Question 2 (2 marks) In the chase, every minute the soldiers get a critical hit in that slows the vehicle by 15%, with the truck starting at 60 km/hr. The truck will stop regardless after 40 minutes due to a fuel leak. Calculate whether they will be able to make it to the safety of the countryside outside the soldiers’ perimeter, 6 km away. Question 3 (2 marks) The teens attempt to take out a critical bridge by blowing up an oil tanker. They set a fuse to blow up the tanker but have to sprint to make it away safely. Assume they are really fit teenagers who can sprint at about 10 m/s. If the dangerous explosion radius is 500 metres, and the fuse burns at 60 cm/s, how long a fuse should they set? Ignore the time to get to full sprinting speed. All material copyright Math Thrills Pty Ltd www.MathThrills.com