Work done = Force x displacement, ie. W = FS
Force = mass x acceleration, ie. F = ma
Power = Energy/time

running

So, running 1 km should have more work done than jogging or walking 1 km. If work done is equivalent to energy transfer. It would mean more energy and hence more calorie. However, 硬漢 told me the energy would first come from protein and then from fat. That is why I should continue exercising for more than 20 minutes.
# posted by Birdie @ 10:13 PM