If we say that each human being is capable of pulling 50 pounds (23 kgs) and with babies doing their best, and doing some of our best maths, the human race would have a pulling force of 1.60 trillion Newtons.

If we say that each human being is capable of pulling 50 pounds (23 kgs) and with babies doing their best, and doing some of our best maths, the human race would have a pulling force of 1.60 trillion Newtons.