A simply supported pedestrian bridge is to be constructed in a city park and two designs have beenproposed as shown in case a and case b. The truss members are to be made from timber. The deckconsists of 1.5m long planks that have a mass of 20kg/m2. A local code states the live load on thedeck is required to be 5kPa with an impact factor of 0.2. Consider the deck to be simply supported onstringers. Floor beams then transmit the load to the bottom joints of the truss. In each case find themember subjected to the largest tension and largest compression load and suggest why you wouldchoose one design over the other. Neglect the weights of the truss members.