A physics question. This has been bugging me for some time. I have seen on the market skydiver weight belts and they say that you would use them to equalize your fall rate to another person. Well it happens that a man a few centuries ago said that objects of differing masses would fall at the same rate. So why the need for the weight, where in any physics calculations does mass/weight have anything to do with you decent rate? Could someone possibly take a stab at explaining this to me?
PS hope this makes sence