The average person will burn approximately 5.68 kilograms of fat in 1.0 year by walking 3.0 km each day.
To calculate the amount of fat burned in 1.0 year, we need to first find the total distance walked in a year.
Given that the person walks 3.0 km each day, we can multiply this by the number of days in a year.
There are 365 days in a year, so the total distance walked in a year would be:
3.0 km/day * 365 days = 1095 km/year
Next, we need to calculate the amount of energy burned per kilometer.
The person burns 40 kcal while walking 1.0 km.
So, the total energy burned per year would be:
40 kcal/km * 1095 km/year = 43,800 kcal/year
Now, we can calculate the amount of fat burned in 1.0 year.
One kilogram of fat tissue stores about 7700 kcal of energy.
To find the amount of fat burned, we divide the total energy burned per year by the energy stored in 1 kilogram of fat tissue:
43,800 kcal/year รท 7700 kcal/kg = 5.68 kg/year (rounded to two decimal places)
Therefore, the average person will burn approximately 5.68 kilograms of fat in 1.0 year by walking 3.0 km each day.