1. The problem statement, all variables and given/known data Estimate the value for Youngs Modulus from the two following graphs: Graph 1: Plot a graph of depression in metres (D) against load in kilograms (M) Graph 2: Plot a graph of log_10(D) against log_10 of Length of cantilever. 2. Relevant equations D = 4*L^3*m*g / Y*a*b^3 Where D = depression L = length of cantilever m = mass of load on free end of cantilever a = width of cantilever b = thickness of cantilever Equation for Graph 1: y = 0.9843x + 0.001, where y = depression and x = load Equation for Graph 2: log(y) = 2.5074 * log(x) + 0.2922, where y = depression and x = length of cantilever 3. The attempt at a solution I've attempted to get Y by re-arranging the straight line equation for Y. So: Y = 4*L^3*m*g / D*a*b^3 But this gives me 1.067*10^11. Which is quite a way off Youngs Modulus for steel.