Why didn’t the pencils fall in the experimental problem on page 50? What happens if you put pencils on a strip of paper

Why didn’t the pencils fall in the experimental problem on page 50? What happens if you put pencils on a strip of paper instead of cardboard? Explain why the pencils fall in the second experiment and not in the first.

A strip of paper will not support the weight of pencils. It is acted upon by forces that are not equal in magnitude.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.