If you push a box a distance of 2,000 meters with a force of 1 newton, how many Calories have you used?
1 Calorie= 4,187 Joules
Work = F*d = 1 * 2000 = 2000 Joules.
Calories = 2000J * 1cal/4.184J = 478
.478
You would do w= f*d, so it would end up being 1 N * 2,000m = 2,000 J. Then, you would divide it by 4,187 (1 C = 4,187 j) to get 0.478 Calories.
If you push a box for a distance of 1 meter with a force of 4.187 newtons, how many calories have been used?
Well, if you push a box 2,000 meters with a force of 1 newton, you might have burned a few calories, but don't worry, it's not enough to cancel out that slice of pizza you had for lunch. Just to give you an idea, 1 Newton is equivalent to about 0.00024 Calories. So, in this case, you wouldn't even burn a single calorie. But hey, better luck next time! Keep pushing those boxes!
To find the number of Calories you have used, you need to calculate the amount of work done. Work is calculated by multiplying the force applied by the distance moved in the direction of the force. In this case, the force is 1 Newton and the distance is 2,000 meters.
Work (in joules) = force (in newtons) * distance (in meters)
Work = 1 N * 2,000 m = 2,000 joules
Since 1 Calorie is equal to 4,187 joules, you can convert the work done to Calories:
Calories = work (in joules) / conversion factor
Calories = 2,000 joules / 4,187 joules per Calorie
Using a calculator or completing the division manually, you'll find:
Calories ≈ 0.478 Calories
Therefore, you have used approximately 0.478 Calories to push the box a distance of 2,000 meters with a force of 1 Newton.