Question

A bridge is made from 20 m long iron rods. At temperature 18 °C, the distance between two rods is 0.4 cm. Up to what temperature will the bridge be in the good shape?​

Answer 1

It is given that the length of the rods = 20m = 2000 cm, temperature T = 18 C, and the distance between the two rods is 0.4 cm.

It is required to find the maximum temperature at which the bridge is still in a good shape.

The bridge will be in a good shape until the two rods expand by 0.2 cm each as the temperature increases. Therefore, let the total expansion be 0.4 cm (2*0.2 cm)

Temperature = 35.4 C

Answer 2

Answer:

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