Solutions to vector thick notes and additional notes and can be found here.
1. Additional Notes (3) last page: Questions 2 and 3 [on foolscap]
2. Homework 16.3 (page 36-38 of thick notes): Questions 4, 5, 6, 8 [on another set of foolscap]
If you have completed the above homework questions, I suggest that you attempt the examples in the thick notes and check the solutions uploaded in the drive.
If you will like to read the next chapter (plane geometry) in advance, please refer to attached notes.