In a school back pack try not to go over 20% of your body weight. Anything more and you really need a pack with a frame. In this case rule aim not to carry more than 1/3 of your total body weight on your back.
I have no freaking idea how to answer this, I'm shocked and appalled at the fact that you want to learn this! Shame on you!
it depends on the child's age and height.
One quarter of its weight
an alpaca can carry only a little weight usually about 30 or 40 pounds
They can carry their own weight
Because they have to carry around more weight, and over time it becomes strenuous on their bodies. The human body is not meant to carry that much weight.
The amount of weight a person can carry will depend upon the person. The stronger the person is, the more weight that they will be able to carry.
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2500
Approximately half their weight.
in the region of 150lbs
130 tons
7
1125