Question

A typical fast food meal consists of a burger, fries, and a soft-drink and contains 58.0 grams of fat, 39.0 grams of protein, and 177 grams of carbohydrate. If jogging burns 950.0 kJ/hour, how many minutes would it take to completely burn off the meal? The respective fuel values for protein, fat, and carbohydrate are 17, 38, and 17 kJ/g, respectively.

Answer 1

371.12 minutes would it take to completely burn off the meal.

Step-by-step explanation:

Amount of fat in the food = 58.0 g

The respective fuel values for fat = 38 kJ/g

Amount of protein = 39.0 g

The respective fuel values for protein = 17 kJ/g

Amount of carbohydrates in the food = 177 g

The respective fuel values for carbohydrates = 17 kJ/g

Total energy derived from the meal = Q

`Q=58.0 g* 38 kJ/g+39.0 g* 17 kJ/g+177 g* 17 kJ/g`

Q = 5876 kJ

Energy used while jogging for 1 hour = 950.0 kJ

Energy used while jogging for 60 minutes = 950.0 kJ

Let the time require to burn 5876 kJ of energy be t.

So,
`(950.0 kJ)/(60 min)=(5876 kJ)/(t)`

`(5876 kJ* 60 min)/(950.0 kJ)=371.12 min`

371.12 minutes would it take to completely burn off the meal.