On a brisk walk, a person burns about 325 Cal/h. A pound of body fat stores an amount of chemical energy equivalent to 3500 Cal. If the brisk walk were done at 2.1 mi/h, how far would the student have to walk to burn off the pound of body fat?
To find out how far the student would have to walk to burn off the pound of body fat, we need to calculate the number of calories burned during the brisk walk and then convert it to distance.
Given:
- Calories burned per hour = 325 Cal/h
- Calories stored in a pound of body fat = 3500 Cal
- Speed of the brisk walk = 2.1 mi/h
Step 1: Calculate the calories burned during the brisk walk.
- The person burns 325 calories per hour.
- Let's assume the person walks for x hours to burn off the pound of body fat.
- Therefore, the total calories burned during the brisk walk would be: 325 Cal/h * x hours = 325x Cal.
Step 2: Convert the calories burned to distance.
- The conversion factor from miles to calories burned is not provided.
- To convert the calorie burning rate from x calories to miles, we need to know the conversion factor (cal/mi).
- Unfortunately, without the conversion factor, we cannot calculate the distance walked.
Therefore, without the conversion factor, it is not possible to determine the distance the student would have to walk to burn off the pound of body fat. Please provide the conversion factor (cal/mi) to proceed with the calculation.
To find how far the person would have to walk to burn off a pound of body fat, we need to use the given information.
We know that during a brisk walk, the person burns about 325 calories per hour. This means that in 1 hour, the person would burn 325 calories.
We also know that 1 pound of body fat is equivalent to 3500 calories.
To find the time it would take to burn off a pound of body fat, we divide 3500 calories by the rate of calorie burn per hour:
3500 calories / 325 calories per hour = 10.77 hours
Now, we need to find the distance the person would cover in 10.77 hours at a speed of 2.1 miles per hour.
Distance = Speed × Time
Distance = 2.1 miles per hour × 10.77 hours
Distance = 22.587 miles
Therefore, the person would have to walk approximately 22.587 miles to burn off one pound of body fat.
3500 Calories x (1 hr/325 Cal) = 10.77 hrs.
distance = rate x time.
Substitute and solve for distance.
My personal opinion, and I have tried to tell my friends this, walking is NOT the way to lose weight. We walk (and I walk two miles/day) to keep the joints moving, keep limber, build heart muscle, and many other reasons but I DON'T walk to lose weight. You can figure it out but my walking gets about 1/3 lb in a week (more or less).