engineering

1100 kg car accelerates from rest reaching distance of 139 m in 8.7 sec determine average power in KW your answer to 2 decimal places?

Determine the stress in a solid steel rod of diameter 30 mm when subjected to a tensile load of 91 KN (your answer must be in MPa to 2 decimal places).

A steel tube 30 mm outside diameter and 25 mm internal diameter and length 500 mm is subjected to a tensile load of 37 KN, determine the change in length in mm to 3 decimal places when the load was applied. For the material E = 210 GPa.