W.S. Company sold a truck on May 31, 2014 for proceeds of $10,000. The cost of the truck was $40,000 and has a useful life of 20 years. The company has purchased the truck on January 1^st, 2000. While the straight line method was used for depreciating its value, with a zero dollar of residual value.

Required// Calculate for the depreciation expense, and the gain/loss on the disposal amount, with recording its journal entry?