3. A steel circular rod with a radius of 15 cm is placed between two vertical supports at 15 degrees Celsius. What compressive force is exerted by the vertical supports if the temperature increases to 60 degrees Celsius? (The coefficient of linear expansion for steel is 12 x 100 °C1 and the elastic modulus of steel is 200 x 10 N/m?).

3. A steel circular rod with a radius of 15 cm is placed between two vertical supports at 15 degrees Celsius. What compressive force is exerted by the vertical supports if the temperature increases to 60 degrees Celsius? (The coefficient of linear expansion for steel is 12 x 100 °C1 and the elastic modulus of steel is 200 x 10 N/m?).