The figure shows a beam scale.
a) Why are the shoulders of the balance beam never made very short?
b) Why does the weighing result do not depend on where the body to be weighed lies – in the middle of the weighing pan or closer to the edge?
a) With a small shoulder, the sensitivity of the scales will be low; b) shoulder strength depends on the suspension point of the cup, and not on the position of the body on the cup.
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.