I am Kokos - Please: can someone help me, I need Your help

[Koko$]

Hello all.
I am Kokos and I am new here, searching for help in physics. I do not know much about physics and solving a homework was always a problem for me, so googling on internet i found this website.

So if somebody can help me - explain, or solve, help me to understand the problem - i really eppreciate it.

Also sorry for my bad english.

 

[Evo]

This will help you with posting in the homework section. https://www.physicsforums.com/threads/guidelines-for-students-and-helpers.686781/ The link to the rules in the e-mail you were sent also has this link. You should read both the rules and the homework help before posting, making sure you follow the instructions, they are not optional. If you do these things, you have a good chance of getting help with your homework.