Problem 5: Assume that thermal energy is equal to the excess amount between food energy consumed (assume this to be 1.4kcal = 5880] and work done. a. How much thermal energy is generated by a 60-kg person climbing the stairs such that height achieved is 2m? b. What is the rate of thermal energy production in watts when the person walks up the stairs in 7 seconds? c. What is the rate when the person runs up the stairs in 2 seconds