2. A meal containing a burger, fries, and a milkshake contains 53.0 grams of fat
ID: 615910 • Letter: 2
Question
- 2. A meal containing a burger, fries, and a milkshake contains 53.0 grams of fat, 38.0 grams of protein, and 152 grams of carbohydrate. The respective fuel values for protein, fat, and carbohydrate are 17, 38, and 17 kJ/g, respectively. If swimming typically burns 1100.0 kJ/hour, __________ minutes of swimming are required to completely burn off the meal. Answer 4.78 33.5 62.5 10.5 286
4.78 33.5 62.5 10.5 286
Explanation / Answer
First calculate the total energy; as follows:
{[53 x 38] + [38 x 17] + [152 x 17]}
= 2014+646+2584
= 5244 KJ
Given that If swimming typically burns 1100.0 kJ/hour
And 1 hour = 60 min thus
swimming typically burns 1100.0 kJ/1 hour * 60 min /1 hr
= 18.33 KJ/ min
Now calculate the time to burns total energy as follows:
5244 KJ / 18.33 KJ/ min
= 286 min
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