How do I solve this mechanical engineering question?

[Urika]

How did you find PF?

Through a friend

Hello, I'm new. I need some help with questions. How do I post here?

 

[PeroK]

You can post in the relevant homework section. See the guidelines here:

https://www.physicsforums.com/threads/homework-help-guidelines-for-students-and-helpers.686781/

 

[Urika]

He I did, please check my post! https://www.physicsforums.com/threa...lideway-for-straightness.997378/#post-6431392

 

[fresh_42]

Hello and !

If it has numbers, then it is probably homework-like. In this case

- choose a suited forum from https://www.physicsforums.com/#homework-help.260
- and if in there click on 'post thread'
- type your questions, but do not forget to show your own efforts, which signals us seriousness and helps to understand what you do not understand

In case it is a technical question, proceed likewise with e.g. https://www.physicsforums.com/#physics.9 if it is a physics question. In this case just make sure, that it isn't a question which already Google or Wikipedia could have answered.

Stay curious and have fun!

 

[Urika]

This is a mechanical engineering related question and hence i posted there. I need help understanding how to solve it, once I get help. i will do it