To calculate Young's Modulus for a rod, the relevant formula is Young's Modulus = stress/strain, where stress is defined as Force/Area and strain is the extension divided by the original length. Given a rod length of 15 cm, a diameter of 1.3 cm, and a pressure of 17795 Pa, the area can be calculated to find the force. The extension (ΔL) is needed to complete the calculation, but the user expressed confusion about where to incorporate pressure into the equations. Correct application of these formulas will yield the Young's modulus value. Understanding the relationships between stress, strain, and the physical dimensions of the rod is crucial for solving the problem.
