A metal bar is heated 100oc by a heat source. After 40 minutes the heat source is removed when the temperature of the metal bar reached to a plateau. Now the metal bar is placed in a room. The room temperature is 25oc. After 10 minutes the bar temperature reached to 80oc. a) What is the initial temperature of the metal bar. b) Find the metal bar temperature after 30 minutes.
How to solve this using Numerical Solution? I am trying to solve this using Euler method, but I only could finish upto this:
Then I stucked. please help.