A 100 ft tape was standardized and the length was 100.000 ft whensupported throughout at the room that has a temperature of 68oF andwas pulled with a tension of 10 lb. The weight and cross sectionalarea of the tape were 1 kg, and 0.05 cm2, respectively. The modulusof elasticity is 2.1 x 106 kg/cm2.
You are using that tape to measure the distance between two pointswhere the tapes are supported at the ends only. The temperature ofthe day is 68oF. What amount of tension do you need to apply not tohave any corrections in the tape measurement?