-Create and solve simple mathematical models of physical systems by applying kn

-Create and solve simple mathematical
models of physical systems by applying kn

-Create and solve simple mathematical
models of physical systems by applying knowledge in integration and differentiation:
You need solve two questions I have uploaded a file with the two questions.
Please not:
-Cite all references you use at the end.
-Create and solve simple mathematical
models of physical systems by applying knowledge in integration:
Demonstrate excellent choices of application of integration in solving physical system and all the modeling/calculation steps are presented in clear, precise, and correct manner. All the values used, including assumptions are clearly stated and explained.
-Create and solve simple mathematical
models of physical systems by applying knowledge in differentiation:
All the calculation steps and comparisons are presented in clear, precise, and correct manner. All the assumptions/Values/methods used are clearly stated and explained including the conclusion.