A man weighs 180 lb. He jogs a mile in 8 minutes. How many calories has he used up?

Calories used = Activity level*Weight*Duration

Activity level at 8 min/mile = 0.22 calories per minute

Weight = 180/2.2 = 81.81 kg

Duration = 8 minutes

Substituting;

Calories used = 0.22*81.81*8 = 144 calories