- Question Suppose That You Are Going To Measure Young S Modulus For Three Rods By Measuring Their Stretch When They Are 1 (257.37 KiB) Viewed 22 times
Question: Suppose that you are going to measure Young's modulus for three rods by measuring their stretch when they are suspended vertically and weights are hung from them (Figure 4.56) W W 2 (Figure 4.56) Rod 1 is 2.7 m long and cylindrical with radius 4 mm (1 mm is 0.001 m). Rod 2 is 3.2 m long by 12 mm wide by 6 mm deep. Rod 3 is 3.m long by 6 mm wide by 6 mm deep. The definition of Young's modulus, Y = (F/A)/(AL/L), includes the quantity A, the cross-sectional area. (a) What is the cross- sectional area of rod 1? (b) What is the cross-sectional area of rod 2? (c) What is the cross-sectional area of rod 3?