What Makes Packaging Material Better - High Density or Low Density Material? why

Depends!

Explanation:

High density packaging material can cost more to use in the end when it comes to packing items with them because the air inside takes up space. Low density packaging is advantageous in that it costs what you might call "ground money" per unit. High density boxes are most often used for product placement, while low-density is most often used for clothing box filling.

the maxium height is 34m/s

answer: 31, 5556. 952 seconds