Recent content by jackiemoon

Hi, Can anybody help with solving the attached problems please? Any advice would be appreciated. Thanks

Hi, Can anybody help with this question? I have attached a scan rather than type it all out. Any tips would be appreciated as I'm unsure how to start it. Thanks

Hi, Can anybody help with the following: A point particle moves in a plane with trajectory given by r(t) = R [θ (t)]^3/2, where R is a constant. The angle θ in radians increases in time according to the equation θ (t) = 1/2 α t^2, where α is a constant whose numerical value is α = 1...

Thanks for the help guys.

Hi, Can anybody offer any assistance with the following problems please: 1. A train is moving along a straight line at constant speed V. Inside a carriage an object is thrown upwards from a height h (measured from the floor of the carriage) with initial velocity v. Determine the trajectory...

This is very basic but I'm having doubts about my understanding of mappings, onto, one-to-one etc and the textbook I'm using isn't very clear. [b]1. Let α,β and γ be mappings from Z to Z defined by α(n) = 3n β(n) = 4n²+1 γ(n) = 2 + cos (nπ/2) ...this is (n(pi)/2 Which of the 3...