Question

why school bag have Broad Strape​

Answer 1

Answer:

school bag have Broad Strape to reduced pressure on shoulder as school bag have narrow Strape cause sever pain in the shoulder because the weight of the bag act on a small area and so the pressure is considerable higher

here your answer mate.....!!!!

Answer 2

Answer:

School bags have broad straps because, as the name suggest it is for school going children and since a school going boy can be of class 1 also who are very young and do not possess much strength in the shoulders, the purpose of the broad straps can be explained using physics, which states that the the pressure is inversely proportional to the area of contact, so the more area in contact the less the pressure. Which is y pencil heels aren't advisable, as they put a lot of pressure on the lower back. Hence the straps are broad.

Hope my answer helps!