Physics: Energy and Momentum Applications; Springs

 Questions:

attached below.

Instructions: 

https://drive.google.com/file/d/1mwWNRQ9JSdSmlP-HSo21hRoHnQ_s9jSs/view?usp=sharing

Lab simulator:

https://phet.colorado.edu/sims/html/masses-and-springs/latest/masses-and-springs_en.html