The inner circumference of a steel tyre is 157 cm. It is to be fitted on a ring of diameter 50 cm. Find the temperature up to which the tyre is to be heated to fit it on the ring. When cooled, what force will be exerted by the tyre on unit surface area of the ring?For steel Y=2.1 times 10^(12)dyn*cm^(-2), alpha=12 times 10^(-6@)C^(-1).

The inner circumference of a steel tyre is 157 cm. It is to be fitted

1.	The inner circumference of a steel tyre is 157 cm. It is to be fitted on a ring of diameter 50 cm. Find the temperature up to which the tyre is to be heated to fit it on the ring. When cooled, what force will be exerted by the tyre on unit surface area of the ring?For steel Y=2.1 times 10^(12)dyn*cm^(-2), alpha=12 times 10^(-6@)C^(-1).
Answer» ANSWER :`50.03^(@)C, 1.261 times 10^(9)DYN`