Victorian mechanics question (2 Viewers)

[nonya2000]

From a VCE specialist maths paper

 

[CirrusTheJet]

Part I and II can be solved by deriving kinematics equations, and knowing that the coefficient of restitution measures the elasticity of a collision. So we can make v the subject for e. Part iii and onwards require complex analysis (not enough grounding, so I can't do them yet).