From experiment 1: 15.036 kg mass by 369244 7448s time periods and will Stress equal to 238.684 MPa. From the second experiment using 20 kg mass, number and time period s 992.4 48941 will Stress equal to 317.483 MPa.
The first experiments using mass 15.036 kg of the 7448s and around 369 244 are equal 238.684MPa Stress from Experiment 2, using 20 kg mass of around 48,941 cycles and time to 992.4s Stress is 317.483MPa.
from time trials 1 using mass 15.036 kg round number 369244 around and time 7448s will Stress was 238.684MPa from experiment times 2 using mass 20 kg. The 48941 around and time 992.4s will Stress was 317.483MPa